News for the tz database |
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Release 2015g - 2015-10-01 00:39:51 -0700 |
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Changes affecting future time stamps |
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Turkey's 2015 fall-back transition is scheduled for Nov. 8, not Oct. 25. |
(Thanks to Fatih.) |
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Norfolk moves from +1130 to +1100 on 2015-10-04 at 02:00 local time. |
(Thanks to Alexander Krivenyshev.) |
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Fiji's 2016 fall-back transition is scheduled for January 17, not 24. |
(Thanks to Ken Rylander.) |
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Fort Nelson, British Columbia will not fall back on 2015-11-01. It has |
effectively been on MST (-0700) since it advanced its clocks on 2015-03-08. |
New zone America/Fort_Nelson. (Thanks to Matt Johnson.) |
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Changes affecting past time stamps |
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Norfolk observed DST from 1974-10-27 02:00 to 1975-03-02 02:00. |
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Changes affecting code |
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localtime no longer mishandles America/Anchorage after 2037. |
(Thanks to Bradley White for reporting the bug.) |
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The localtime module allows the variables 'timezone', 'daylight', |
and 'altzone' to be in common storage shared with other modules, |
and declares them in case the system <time.h> does not. |
(Problems reported by Kees Dekker.) |
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On platforms with tm_zone, strftime.c now assumes it is not NULL. |
This simplifies the code and is consistent with zdump.c. |
(Problem reported by Christos Zoulas.) |
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Changes affecting documentation |
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The tzfile man page now documents that transition times denote the |
starts (not the ends) of the corresponding time periods. |
(Ambiguity reported by Bill Seymour.) |
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Release 2015f - 2015-08-10 18:06:56 -0700 |
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Changes affecting future time stamps |
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North Korea switches to +0830 on 2015-08-15. (Thanks to Steffen Thorsen.) |
The abbreviation remains "KST". (Thanks to Robert Elz.) |
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Uruguay no longer observes DST. (Thanks to Steffen Thorsen |
and Pablo Camargo.) |
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Changes affecting past and future time stamps |
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Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC. |
(Thanks to Roman Tudos.) |
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Changes affecting data format and code |
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zic's '-y YEARISTYPE' option is no longer documented. The TYPE |
field of a Rule line should now be '-'; the old values 'even', |
'odd', 'uspres', 'nonpres', 'nonuspres' were already undocumented. |
Although the implementation has not changed, these features do not |
work in the default installation, they are not used in the data, |
and they are now considered obsolescent. |
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zic now checks that two rules don't take effect at the same time. |
(Thanks to Jon Skeet and Arthur David Olson.) Constraints on |
simultaneity are now documented. |
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The two characters '%z' in a zone format now stand for the UTC |
offset, e.g., '-07' for seven hours behind UTC and '+0530' for |
five hours and thirty minutes ahead. This better supports time |
zone abbreviations conforming to POSIX.1-2001 and later. |
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Changes affecting installed data files |
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Comments for America/Halifax and America/Glace_Bay have been improved. |
(Thanks to Brian Inglis.) |
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Data entries have been simplified for Atlantic/Canary, Europe/Simferopol, |
Europe/Sofia, and Europe/Tallinn. This yields slightly smaller |
installed data files for Europe/Simferopol and Europe/Tallinn. |
It does not affect timestamps. (Thanks to Howard Hinnant.) |
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Changes affecting code |
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zdump and zic no longer warn about valid time zone abbreviations |
like '-05'. |
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Some Visual Studio 2013 warnings have been suppressed. |
(Thanks to Kees Dekker.) |
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'date' no longer sets the time of day and its -a, -d, -n and -t |
options have been removed. Long obsolescent, the implementation |
of these features had porting problems. Builders no longer need |
to configure HAVE_ADJTIME, HAVE_SETTIMEOFDAY, or HAVE_UTMPX_H. |
(Thanks to Kees Dekker for pointing out the problem.) |
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Changes affecting documentation |
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The Theory file mentions naming issues earlier, as these seem to be |
poorly publicized (thanks to Gilmore Davidson for reporting the problem). |
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tz-link.htm mentions Time Zone Database Parser (thanks to Howard Hinnant). |
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Mention that Herbert Samuel introduced the term "Summer Time". |
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Release 2015e - 2015-06-13 10:56:02 -0700 |
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Changes affecting future time stamps |
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Morocco will suspend DST from 2015-06-14 03:00 through 2015-07-19 02:00, |
not 06-13 and 07-18 as we had guessed. (Thanks to Milamber.) |
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Assume Cayman Islands will observe DST starting next year, using US rules. |
Although it isn't guaranteed, it is the most likely. |
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Changes affecting data format |
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The file 'iso3166.tab' now uses UTF-8, so that its entries can better |
spell the names of Åland Islands, Côte d'Ivoire, and Réunion. |
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Changes affecting code |
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When displaying data, tzselect converts it to the current locale's |
encoding if the iconv command works. (Problem reported by random832.) |
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tzselect no longer mishandles Dominica, fixing a bug introduced |
in Release 2014f. (Problem reported by Owen Leibman.) |
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zic -l no longer fails when compiled with -DTZDEFAULT=\"/etc/localtime\". |
This fixes a bug introduced in Release 2014f. |
(Problem reported by Leonardo Chiquitto.) |
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Release 2015d - 2015-04-24 08:09:46 -0700 |
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Changes affecting future time stamps |
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Egypt will not observe DST in 2015 and will consider canceling it |
permanently. For now, assume no DST indefinitely. |
(Thanks to Ahmed Nazmy and Tim Parenti.) |
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Changes affecting past time stamps |
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America/Whitehorse switched from UTC-9 to UTC-8 on 1967-05-28, not |
1966-07-01. Also, Yukon's time zone history is documented better. |
(Thanks to Brian Inglis and Dennis Ferguson.) |
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Change affecting past and future time zone abbreviations |
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The abbreviations for Hawaii-Aleutian standard and daylight times |
have been changed from HAST/HADT to HST/HDT, as per US Government |
Printing Office style. This affects only America/Adak since 1983, |
as America/Honolulu was already using the new style. |
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Changes affecting code |
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zic has some minor performance improvements. |
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Release 2015c - 2015-04-11 08:55:55 -0700 |
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Changes affecting future time stamps |
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Egypt's spring-forward transition is at 24:00 on April's last Thursday, |
not 00:00 on April's last Friday. 2015's transition will therefore be on |
Thursday, April 30 at 24:00, not Friday, April 24 at 00:00. Similar fixes |
apply to 2026, 2037, 2043, etc. (Thanks to Steffen Thorsen.) |
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Changes affecting past time stamps |
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The following changes affect some pre-1991 Chile-related time stamps |
in America/Santiago, Antarctica/Palmer, and Pacific/Easter. |
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The 1910 transition was January 10, not January 1. |
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The 1918 transition was September 10, not September 1. |
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The UTC-4 time observed from 1932 to 1942 is now considered to be |
standard time, not year-round DST. |
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Santiago observed DST (UTC-3) from 1946-07-15 through 1946-08-31, |
then reverted to standard time, then switched its time zone to |
UTC-5 on 1947-04-01. |
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Assume transitions before 1968 were at 00:00, since we have no data |
saying otherwise. |
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The spring 1988 transition was 1988-10-09, not 1988-10-02. |
The fall 1990 transition was 1990-03-11, not 1990-03-18. |
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Assume no UTC offset change for Pacific/Easter on 1890-01-01, |
and omit all transitions on Pacific/Easter from 1942 through 1946 |
since we have no data suggesting that they existed. |
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One more zone has been turned into a link, as it differed |
from an existing zone only for older time stamps. As usual, |
this change affects UTC offsets in pre-1970 time stamps only. |
The zone's old contents have been moved to the 'backzone' file. |
The affected zone is America/Montreal. |
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Changes affecting commentary |
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Mention the TZUpdater tool. |
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Mention "The Time Now". (Thanks to Brandon Ramsey.) |
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Release 2015b - 2015-03-19 23:28:11 -0700 |
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Changes affecting future time stamps |
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Mongolia will start observing DST again this year, from the last |
Saturday in March at 02:00 to the last Saturday in September at 00:00. |
(Thanks to Ganbold Tsagaankhuu.) |
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Palestine will start DST on March 28, not March 27. Also, |
correct the fall 2014 transition from September 26 to October 24. |
Adjust future predictions accordingly. (Thanks to Steffen Thorsen.) |
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Changes affecting past time stamps |
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The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a |
regression. (Thanks to Stuart Bishop for reporting the problem.) |
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Some more zones have been turned into links, when they differed |
from existing zones only for older time stamps. As usual, |
these changes affect UTC offsets in pre-1970 time stamps only. |
Their old contents have been moved to the 'backzone' file. |
The affected zones are: America/Antigua, America/Cayman, |
Pacific/Midway, and Pacific/Saipan. |
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Changes affecting time zone abbreviations |
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Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD". |
(Thanks to Hank W.) |
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Changes affecting code |
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Fix integer overflow bug in reference 'mktime' implementation. |
(Problem reported by Jörg Richter.) |
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Allow -Dtime_tz=time_t compilations, and allow -Dtime_tz=... libraries |
to be used in the same executable as standard-library time_t functions. |
(Problems reported by Bradley White.) |
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Changes affecting commentary |
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Cite the recent Mexican decree changing Quintana Roo's time zone. |
(Thanks to Carlos Raúl Perasso.) |
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Likewise for the recent Chilean decree. (Thanks to Eduardo Romero Urra.) |
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Update info about Mars time. |
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Release 2015a - 2015-01-29 22:35:20 -0800 |
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Changes affecting future time stamps |
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The Mexican state of Quintana Roo, represented by America/Cancun, |
will shift from Central Time with DST to Eastern Time without DST |
on 2015-02-01 at 02:00. (Thanks to Steffen Thorsen and Gwillim Law.) |
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Chile will not change clocks in April or thereafter; its new standard time |
will be its old daylight saving time. This affects America/Santiago, |
Pacific/Easter, and Antarctica/Palmer. (Thanks to Juan Correa.) |
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New leap second 2015-06-30 23:59:60 UTC as per IERS Bulletin C 49. |
(Thanks to Tim Parenti.) |
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Changes affecting past time stamps |
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Iceland observed DST in 1919 and 1921, and its 1939 fallback |
transition was Oct. 29, not Nov. 29. Remove incorrect data from |
Shanks about time in Iceland between 1837 and 1908. |
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Some more zones have been turned into links, when they differed |
from existing zones only for older time stamps. As usual, |
these changes affect UTC offsets in pre-1970 time stamps only. |
Their old contents have been moved to the 'backzone' file. |
The affected zones are: Asia/Aden, Asia/Bahrain, Asia/Kuwait, |
and Asia/Muscat. |
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Changes affecting code |
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tzalloc now scrubs time zone abbreviations compatibly with the way |
that tzset always has, by replacing invalid bytes with '_' and by |
shortening too-long abbreviations. |
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tzselect ports to POSIX awk implementations, no longer mishandles |
POSIX TZ settings when GNU awk is used, and reports POSIX TZ |
settings to the user. (Thanks to Stefan Kuhn.) |
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Changes affecting build procedure |
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'make check' now checks for links to links in the data. |
One such link (for Africa/Asmera) has been fixed. |
(Thanks to Stephen Colebourne for pointing out the problem.) |
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Changes affecting commentary |
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The leapseconds file commentary now mentions the expiration date. |
(Problem reported by Martin Burnicki.) |
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Update Mexican Library of Congress URL. |
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Release 2014j - 2014-11-10 17:37:11 -0800 |
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Changes affecting current and future time stamps |
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Turks & Caicos' switch from US eastern time to UTC-4 year-round |
did not occur on 2014-11-02 at 02:00. It's currently scheduled |
for 2015-11-01 at 02:00. (Thanks to Chris Walton.) |
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Changes affecting past time stamps |
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Many pre-1989 time stamps have been corrected for Asia/Seoul and |
Asia/Pyongyang, based on sources for the Korean-language Wikipedia |
entry for time in Korea. (Thanks to Sanghyuk Jung.) Also, no |
longer guess that Pyongyang mimicked Seoul time after World War II, |
as this is politically implausible. |
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Some more zones have been turned into links, when they differed |
from existing zones only for older time stamps. As usual, |
these changes affect UTC offsets in pre-1970 time stamps only. |
Their old contents have been moved to the 'backzone' file. |
The affected zones are: Africa/Addis_Ababa, Africa/Asmara, |
Africa/Dar_es_Salaam, Africa/Djibouti, Africa/Kampala, |
Africa/Mogadishu, Indian/Antananarivo, Indian/Comoro, and |
Indian/Mayotte. |
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Changes affecting commentary |
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The commentary is less enthusiastic about Shanks as a source, |
and is more careful to distinguish UT from UTC. |
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Release 2014i - 2014-10-21 22:04:57 -0700 |
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Changes affecting future time stamps |
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Pacific/Fiji will observe DST from 2014-11-02 02:00 to 2015-01-18 03:00. |
(Thanks to Ken Rylander for the heads-up.) Guess that future |
years will use a similar pattern. |
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A new Zone Pacific/Bougainville, for the part of Papua New Guinea |
that plans to switch from UTC+10 to UTC+11 on 2014-12-28 at 02:00. |
(Thanks to Kiley Walbom for the heads-up.) |
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Changes affecting time zone abbreviations |
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Since Belarus is not changing its clocks even though Moscow is, |
the time zone abbreviation in Europe/Minsk is changing from FET |
to its more-traditional value MSK on 2014-10-26 at 01:00. |
(Thanks to Alexander Bokovoy for the heads-up about Belarus.) |
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The new abbreviation IDT stands for the pre-1976 use of UT+8 in |
Indochina, to distinguish it better from ICT (UT+7). |
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Changes affecting past time stamps |
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Many time stamps have been corrected for Asia/Ho_Chi_Minh before 1976 |
(thanks to Trần Ngọc Quân for an indirect pointer to Trần Tiến Bình's |
authoritative book). Asia/Ho_Chi_Minh has been added to |
zone1970.tab, to give tzselect users in Vietnam two choices, |
since north and south Vietnam disagreed after our 1970 cutoff. |
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Asia/Phnom_Penh and Asia/Vientiane have been turned into links, as |
they differed from existing zones only for older time stamps. As |
usual, these changes affect pre-1970 time stamps only. Their old |
contents have been moved to the 'backzone' file. |
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Changes affecting code |
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The time-related library functions now set errno on failure, and |
some crashes in the new tzalloc-related library functions have |
been fixed. (Thanks to Christos Zoulas for reporting most of |
these problems and for suggesting fixes.) |
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If USG_COMPAT is defined and the requested time stamp is standard time, |
the tz library's localtime and mktime functions now set the extern |
variable timezone to a value appropriate for that time stamp; and |
similarly for ALTZONE, daylight saving time, and the altzone variable. |
This change is a companion to the tzname change in 2014h, and is |
designed to make timezone and altzone more compatible with tzname. |
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The tz library's functions now set errno to EOVERFLOW if they fail |
because the result cannot be represented. ctime and ctime_r now |
return NULL and set errno when a time stamp is out of range, rather |
than having undefined behavior. |
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Some bugs associated with the new 2014g functions have been fixed. |
This includes a bug that largely incapacitated the new functions |
time2posix_z and posix2time_z. (Thanks to Christos Zoulas.) |
It also includes some uses of uninitialized variables after tzalloc. |
The new code uses the standard type 'ssize_t', which the Makefile |
now gives porting advice about. |
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Changes affecting commentary |
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Updated URLs for NRC Canada (thanks to Matt Johnson and Brian Inglis). |
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Release 2014h - 2014-09-25 18:59:03 -0700 |
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Changes affecting past time stamps |
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America/Jamaica's 1974 spring-forward transition was Jan. 6, not Apr. 28. |
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Shanks says Asia/Novokuznetsk switched from LMT (not "NMT") on 1924-05-01, |
not 1920-01-06. The old entry was based on a misinterpretation of Shanks. |
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Some more zones have been turned into links, when they differed |
from existing zones only for older time stamps. As usual, |
these changes affect UTC offsets in pre-1970 time stamps only. |
Their old contents have been moved to the 'backzone' file. |
The affected zones are: Africa/Blantyre, Africa/Bujumbura, |
Africa/Gaborone, Africa/Harare, Africa/Kigali, Africa/Lubumbashi, |
Africa/Lusaka, Africa/Maseru, and Africa/Mbabane. |
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Changes affecting code |
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zdump -V and -v now output gmtoff= values on all platforms, |
not merely on platforms defining TM_GMTOFF. |
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The tz library's localtime and mktime functions now set tzname to a value |
appropriate for the requested time stamp, and zdump now uses this |
on platforms not defining TM_ZONE, fixing a 2014g regression. |
(Thanks to Tim Parenti for reporting the problem.) |
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The tz library no longer sets tzname if localtime or mktime fails. |
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zdump -c no longer mishandles transitions near year boundaries. |
(Thanks to Tim Parenti for reporting the problem.) |
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An access to uninitalized data has been fixed. |
(Thanks to Jörg Richter for reporting the problem.) |
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When THREAD_SAFE is defined, the code ports to the C11 memory model. |
A memory leak has been fixed if ALL_STATE and THREAD_SAFE are defined |
and two threads race to initialize data used by gmtime-like functions. |
(Thanks to Andy Heninger for reporting the problems.) |
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Changes affecting build procedure |
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'make check' now checks better for properly-sorted data. |
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Changes affecting documentation and commentary |
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zdump's gmtoff=N output is now documented, and its isdst=D output |
is now documented to possibly output D values other than 0 or 1. |
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zdump -c's treatment of years is now documented to use the |
Gregorian calendar and Universal Time without leap seconds, |
and its behavior at cutoff boundaries is now documented better. |
(Thanks to Arthur David Olson and Tim Parenti for reporting the problems.) |
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Programs are now documented to use the proleptic Gregorian calendar. |
(Thanks to Alan Barrett for the suggestion.) |
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Fractional-second GMT offsets have been documented for civil time |
in 19th-century Chennai, Jakarta, and New York. |
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Release 2014g - 2014-08-28 12:31:23 -0700 |
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Changes affecting future time stamps |
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Turks & Caicos is switching from US eastern time to UTC-4 year-round, |
modeled as a switch from EST/EDT to AST on 2014-11-02 at 02:00. |
[As noted in 2014j, this switch was later delayed.] |
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Changes affecting past time stamps |
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Time in Russia or the USSR before 1926 or so has been corrected by |
a few seconds in the following zones: Asia/Irkutsk, |
Asia/Krasnoyarsk, Asia/Omsk, Asia/Samarkand, Asia/Tbilisi, |
Asia/Vladivostok, Asia/Yakutsk, Europe/Riga, Europe/Samara. For |
Asia/Yekaterinburg the correction is a few minutes. (Thanks to |
Vladimir Karpinsky.) |
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The Portuguese decree of 1911-05-26 took effect on 1912-01-01. |
This affects 1911 time stamps in Africa/Bissau, Africa/Luanda, |
Atlantic/Azores, and Atlantic/Madeira. Also, Lisbon's pre-1912 |
GMT offset was -0:36:45 (rounded from -0:36:44.68), not -0:36:32. |
(Thanks to Stephen Colebourne for pointing to the decree.) |
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Asia/Dhaka ended DST on 2009-12-31 at 24:00, not 23:59. |
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A new file 'backzone' contains data which may appeal to |
connoisseurs of old time stamps, although it is out of scope for |
the tz database, is often poorly sourced, and contains some data |
that is known to be incorrect. The new file is not recommended |
for ordinary use and its entries are not installed by default. |
(Thanks to Lester Caine for the high-quality Jersey, Guernsey, and |
Isle of Man entries.) |
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Some more zones have been turned into links, when they differed |
from existing zones only for older time stamps. As usual, |
these changes affect UTC offsets in pre-1970 time stamps only. |
Their old contents have been moved to the 'backzone' file. |
The affected zones are: Africa/Bangui, Africa/Brazzaville, |
Africa/Douala, Africa/Kinshasa, Africa/Libreville, Africa/Luanda, |
Africa/Malabo, Africa/Niamey, and Africa/Porto-Novo. |
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Changes affecting code |
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Unless NETBSD_INSPIRED is defined to 0, the tz library now |
supplies functions for creating and using objects that represent |
time zones. The new functions are tzalloc, tzfree, localtime_rz, |
mktime_z, and (if STD_INSPIRED is also defined) posix2time_z and |
time2posix_z. They are intended for performance: for example, |
localtime_rz (unlike localtime_r) is trivially thread-safe without |
locking. (Thanks to Christos Zoulas for proposing NetBSD-inspired |
functions, and to Alan Barrett and Jonathan Lennox for helping to |
debug the change.) |
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zdump now builds with the tz library unless USE_LTZ is defined to 0, |
This lets zdump use tz features even if the system library lacks them. |
To build zdump with the system library, use 'make CFLAGS=-DUSE_LTZ=0 |
TZDOBJS=zdump.o CHECK_TIME_T_ALTERNATIVES='. |
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zdump now uses localtime_rz if available, as it's significantly faster, |
and it can help zdump better diagnose invalid time zone names. |
Define HAVE_LOCALTIME_RZ to 0 to suppress this. HAVE_LOCALTIME_RZ |
defaults to 1 if NETBSD_INSPIRED && USE_LTZ. When localtime_rz is |
not available, zdump now uses localtime_r and tzset if available, |
as this is a bit cleaner and faster than plain localtime. Compile |
with -DHAVE_LOCALTIME_R=0 and/or -DHAVE_TZSET=0 if your system |
lacks these two functions. |
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If THREAD_SAFE is defined to 1, the tz library is now thread-safe. |
Although not needed for tz's own applications, which are single-threaded, |
this supports POSIX better if the tz library is used in multithreaded apps. |
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Some crashes have been fixed when zdump or the tz library is given |
invalid or outlandish input. |
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The tz library no longer mishandles leap seconds on platforms with |
unsigned time_t in time zones that lack ordinary transitions after 1970. |
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The tz code now attempts to infer TM_GMTOFF and TM_ZONE if not |
already defined, to make it easier to configure on common platforms. |
Define NO_TM_GMTOFF and NO_TM_ZONE to suppress this. |
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Unless the new macro UNINIT_TRAP is defined to 1, the tz code now |
assumes that reading uninitialized memory yields garbage values |
but does not cause other problems such as traps. |
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If TM_GMTOFF is defined and UNINIT_TRAP is 0, mktime is now |
more likely to guess right for ambiguous time stamps near |
transitions where tm_isdst does not change. |
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If HAVE_STRFTIME_L is defined to 1, the tz library now defines |
strftime_l for compatibility with recent versions of POSIX. |
Only the C locale is supported, though. HAVE_STRFTIME_L defaults |
to 1 on recent POSIX versions, and to 0 otherwise. |
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tzselect -c now uses a hybrid distance measure that works better |
in Africa. (Thanks to Alan Barrett for noting the problem.) |
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The C source code now ports to NetBSD when GCC_DEBUG_FLAGS is used, |
or when time_tz is defined. |
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When HAVE_UTMPX_H is set the 'date' command now builds on systems |
whose <utmpx.h> file does not define WTMPX_FILE, and when setting |
the date it updates the wtmpx file if _PATH_WTMPX is defined. |
This affects GNU/Linux and similar systems. |
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For easier maintenance later, some C code has been simplified, |
some lint has been removed, and the code has been tweaked so that |
plain 'make' is more likely to work. |
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The C type 'bool' is now used for boolean values, instead of 'int'. |
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The long-obsolete LOCALE_HOME code has been removed. |
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The long-obsolete 'gtime' function has been removed. |
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Changes affecting build procedure |
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'zdump' no longer links in ialloc.o, as it's not needed. |
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'make check_time_t_alternatives' no longer assumes GNU diff. |
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Changes affecting distribution tarballs |
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The files checktab.awk and zoneinfo2tdf.pl are now distributed in |
the tzdata tarball instead of the tzcode tarball, since they help |
maintain the data. The NEWS and Theory files are now also |
distributed in the tzdata tarball, as they're relevant for data. |
(Thanks to Alan Barrett for pointing this out.) Also, the |
leapseconds.awk file is no longer distributed in the tzcode |
tarball, since it belongs in the tzdata tarball (where 2014f |
inadvertently also distributed it). |
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Changes affecting documentation and commentary |
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A new file CONTRIBUTING is distributed. (Thanks to Tim Parenti for |
suggesting a CONTRIBUTING file, and to Tony Finch and Walter Harms |
for debugging it.) |
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The man pages have been updated to use function prototypes, |
to document thread-safe variants like localtime_r, and to document |
the NetBSD-inspired functions tzalloc, tzfree, localtime_rz, and |
mktime_z. |
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The fields in Link lines have been renamed to be more descriptive |
and more like the parameters of 'ln'. LINK-FROM has become TARGET, |
and LINK-TO has become LINK-NAME. |
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tz-link.htm mentions the IETF's tzdist working group; Windows |
Runtime etc. (thanks to Matt Johnson); and HP-UX's tztab. |
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Some broken URLs have been fixed in the commentary. (Thanks to |
Lester Caine.) |
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Commentary about Philippines DST has been updated, and commentary |
on pre-1970 time in India has been added. |
|
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Release 2014f - 2014-08-05 17:42:36 -0700 |
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Changes affecting future time stamps |
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Russia will subtract an hour from most of its time zones on 2014-10-26 |
at 02:00 local time. (Thanks to Alexander Krivenyshev.) |
There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky |
Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug |
(Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast |
(Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic |
(Europe/Samara) are not changing their clocks. The changed zones are |
Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, |
Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, |
Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, |
Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours |
subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, |
but not its UTC offset. Two zones are added: Asia/Chita (split |
from Asia/Yakutsk, and also with two hours subtracted) and |
Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour |
subtracted). (Thanks to Tim Parenti for much of the above.) |
|
Changes affecting time zone abbreviations |
|
Australian eastern time zone abbreviations are now AEST/AEDT not EST, |
and similarly for the other Australian zones. That is, for eastern |
standard and daylight saving time the abbreviations are AEST and AEDT |
instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, |
and AWST/AWDT are now used instead of the former CST, CWST, and WST. |
This change does not affect UTC offsets, only time zone abbreviations. |
(Thanks to Rich Tibbett and many others.) |
|
Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7) |
effective 2014-10-26 at 02:00 local time. |
|
The time zone abbreviation for Xinjiang Time (observed in Ürümqi) |
has been changed from URUT to XJT. (Thanks to Luther Ma.) |
|
Prefer MSK/MSD for Moscow time in Russia, even in other cities. |
Similarly, prefer EET/EEST for eastern European time in Russia. |
|
Change time zone abbreviations in (western) Samoa to use "ST" and |
"DT" suffixes, as this is more likely to match common practice. |
Prefix "W" to (western) Samoa time when its standard-time offset |
disagrees with that of American Samoa. |
|
America/Metlakatla now uses PST, not MeST, to abbreviate its time zone. |
|
Time zone abbreviations have been updated for Japan's two time |
zones used 1896-1937. JWST now stands for Western Standard |
Time, and JCST for Central Standard Time (formerly this was CJT). |
These abbreviations are now used for time in Korea, Taiwan, |
and Sakhalin while controlled by Japan. |
|
Changes affecting past time stamps |
|
China's five zones have been simplified to two, since the post-1970 |
differences in the other three seem to have been imaginary. The |
zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been |
removed; backwards-compatibility links still work, albeit with |
different behaviors for time stamps before May 1980. Asia/Urumqi's |
1980 transition to UTC+8 has been removed, so that it is now at |
UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl; |
Treindl sent helpful translations of two papers by Guo Qingsheng.) |
|
Some zones have been turned into links, when they differed from existing |
zones only for older UTC offsets where data entries were likely invented. |
These changes affect UTC offsets in pre-1970 time stamps only. This is |
similar to the change in release 2013e, except this time for western |
Africa. The affected zones are: Africa/Bamako, Africa/Banjul, |
Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, |
Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and |
Atlantic/St_Helena. This also affects the backwards-compatibility |
link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, |
Tim Parenti, and David Patte for reporting problems in earlier |
versions of this change.) |
|
Asia/Shanghai's pre-standard-time UT offset has been changed from |
8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its |
transition to standard time has been changed from 1928 to 1901. |
|
Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, |
then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. |
In 1946 it observed DST from 05-15 through 09-30; in 1947 |
from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. |
(Thanks to Yu-Cheng Chuang.) |
|
Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. |
|
Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not |
10-03 at 00:00. (Thanks to Konstantin Hyppönen.) |
|
Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period |
from 1911 to 1950. |
|
Pacific/Chatham has been changed to New Zealand standard time plus |
45 minutes for the period before 1957, reflecting a 1956 remark in |
the New Zealand parliament. |
|
Europe/Budapest has several pre-1946 corrections: in 1918 the transition |
out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in |
1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 |
not 04-06 at 02:00; and there was no DST in 1920. |
|
Africa/Accra is now assumed to have observed DST from 1920 through 1935. |
|
Time in Russia before 1927 or so has been corrected by a few seconds in |
the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, |
Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and |
Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 |
point. (Thanks to Vladimir Karpinsky for the Moscow changes.) |
|
Changes affecting data format |
|
A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. |
The new file's extended format allows multiple country codes per zone. |
The older file is still installed but is deprecated; its format is |
not changing and it will still be distributed for a while, but new |
applications should use the new file. |
|
The new file format simplifies maintenance of obscure locations. |
To test this, it adds coverage for the Crozet Islands and the |
Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) |
|
The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. |
It is still ASCII now, but commentary about the switch has been added. |
The new file 'zone1970.tab' already uses UTF-8. |
|
Changes affecting code |
|
'localtime', 'mktime', etc. now use much less stack space if ALL_STATE |
is defined. (Thanks to Elliott Hughes for reporting the problem.) |
|
'zic' no longer mishandles input when ignoring case in locales that |
are not compatible with English, e.g., unibyte Turkish locales when |
compiled with HAVE_GETTEXT. |
|
Error diagnostics of 'zic' and 'yearistype' have been reworded so that |
they no longer use ASCII '-' as if it were a dash. |
|
'zic' now rejects output file names that contain '.' or '..' components. |
(Thanks to Tim Parenti for reporting the problem.) |
|
'zic -v' now warns about output file names that do not follow |
POSIX rules, or that contain a digit or '.'. (Thanks to Arthur |
David Olson for starting the ball rolling on this.) |
|
Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. |
|
Changes affecting build procedure |
|
'zic' no longer links in localtime.o and asctime.o, as they're not needed. |
(Thanks to John Cochran.) |
|
Changes affecting documentation and commentary |
|
The 'Theory' file documents legacy names, the longstanding |
exceptions to the POSIX-inspired file name rules. |
|
The 'zic' documentation clarifies the role of time types when |
interpreting dates. (Thanks to Arthur David Olson.) |
|
Documentation and commentary now prefer UTF-8 to US-ASCII, |
allowing the use of proper accents in foreign words and names. |
Code and data have not changed because of this. (Thanks to |
Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug |
this.) |
|
Non-HTML documentation and commentary now use plain-text URLs instead of |
HTML insertions, and are more consistent about bracketing URLs when they |
are not already surrounded by white space. (Thanks to suggestions by |
Steffen Nurpmeso.) |
|
There is new commentary about Xujiahui Observatory, the five time-zone |
project in China from 1918 to 1949, timekeeping in Japanese-occupied |
Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the |
warlord Jin Shuren in the data. |
|
Commentary about the coverage of each Russian zone has been standardized. |
(Thanks to Tim Parenti). |
|
There is new commentary about contemporary timekeeping in Ethiopia. |
|
Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. |
|
There is new commentary about time in Poland in 1919. |
|
Proper credit has been given to DST inventor George Vernon Hudson. |
|
Commentary about time in Metlakatla, AK and Resolute, NU has been |
improved, with a new source for the former. |
|
In zone.tab, Pacific/Easter no longer mentions Salas y Gómez, as it |
is uninhabited. |
|
Commentary about permanent Antarctic bases has been updated. |
|
Several typos have been corrected. (Thanks to Tim Parenti for |
contributing some of these fixes.) |
|
tz-link.htm now mentions the JavaScript libraries Moment Timezone, |
TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up |
from Matt Johnson.) Also, it mentions the Go 'latlong' package. |
(Thanks to a heads-up from Dirkjan Ochtman.) |
|
The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 |
have been removed. These obsolescent US Naval Observatory entries were no |
longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) |
|
|
Release 2014e - 2014-06-12 21:53:52 -0700 |
|
Changes affecting near-future time stamps |
|
Egypt's 2014 Ramadan-based transitions are June 26 and July 31 at 24:00. |
(Thanks to Imed Chihi.) Guess that from 2015 on Egypt will temporarily |
switch to standard time at 24:00 the last Thursday before Ramadan, and |
back to DST at 00:00 the first Friday after Ramadan. |
|
Similarly, Morocco's are June 28 at 03:00 and August 2 at 02:00. (Thanks |
to Milamber Space Network.) Guess that from 2015 on Morocco will |
temporarily switch to standard time at 03:00 the last Saturday before |
Ramadan, and back to DST at 02:00 the first Saturday after Ramadan. |
|
Changes affecting past time stamps |
|
The abbreviation "MSM" (Moscow Midsummer Time) is now used instead of |
"MSD" for Moscow's double daylight time in summer 1921. Also, a typo |
"VLASST" has been repaired to be "VLAST" for Vladivostok summer time |
in 1991. (Thanks to Hank W. for reporting the problems.) |
|
Changes affecting commentary |
|
tz-link.htm now cites RFC 7265 for jCal, mentions PTP and the |
draft CalDAV extension, updates URLs for TSP, TZInfo, IATA, and |
removes stale pointers to World Time Explorer and WORLDTIME. |
|
|
Release 2014d - 2014-05-27 21:34:40 -0700 |
|
Changes affecting code |
|
zic no longer generates files containing time stamps before the Big Bang. |
This works around GNOME bug 730332 |
<https://bugzilla.gnome.org/show_bug.cgi?id=730332>. |
(Thanks to Leonardo Chiquitto for reporting the bug, and to |
Arthur David Olson and James Cloos for suggesting improvements to the fix.) |
|
Changes affecting documentation |
|
tz-link.htm now mentions GNOME. |
|
|
Release 2014c - 2014-05-13 07:44:13 -0700 |
|
Changes affecting near-future time stamps |
|
Egypt observes DST starting 2014-05-15 at 24:00. |
(Thanks to Ahmad El-Dardiry and Gunther Vermier.) |
Details have not been announced, except that DST will not be observed |
during Ramadan. Guess that DST will stop during the same Ramadan dates as |
Morocco, and that Egypt's future spring and fall transitions will be the |
same as 2010 when it last observed DST, namely April's last Friday at |
00:00 to September's last Thursday at 23:00 standard time. Also, guess |
that Ramadan transitions will be at 00:00 standard time. |
|
Changes affecting code |
|
zic now generates transitions for minimum time values, eliminating guesswork |
when handling low-valued time stamps. (Thanks to Arthur David Olson.) |
|
Port to Cygwin sans glibc. (Thanks to Arthur David Olson.) |
|
Changes affecting commentary and documentation |
|
Remove now-confusing comment about Jordan. (Thanks to Oleksii Nochovnyi.) |
|
|
Release 2014b - 2014-03-24 21:28:50 -0700 |
|
Changes affecting near-future time stamps |
|
Crimea switches to Moscow time on 2014-03-30 at 02:00 local time. |
(Thanks to Alexander Krivenyshev.) Move its zone.tab entry from UA to RU. |
|
New entry for Troll station, Antarctica. (Thanks to Paul-Inge Flakstad and |
Bengt-Inge Larsson.) This is currently an approximation; a better version |
will require the zic and localtime fixes mentioned below, and the plan is |
to wait for a while until at least the zic fixes propagate. |
|
Changes affecting code |
|
'zic' and 'localtime' no longer reject locations needing four transitions |
per year for the foreseeable future. (Thanks to Andrew Main (Zefram).) |
Also, 'zic' avoids some unlikely failures due to integer overflow. |
|
Changes affecting build procedure |
|
'make check' now detects Rule lines defined but never used. |
The NZAQ rules, an instance of this problem, have been removed. |
|
Changes affecting commentary and documentation |
|
Fix Tuesday/Thursday typo in description of time in Israel. |
(Thanks to Bert Katz via Pavel Kharitonov and Mike Frysinger.) |
|
Microsoft Windows 8.1 doesn't support tz database names. (Thanks |
to Donald MacQueen.) Instead, the Microsoft Windows Store app |
library supports them. |
|
Add comments about Johnston Island time in the 1960s. |
(Thanks to Lyle McElhaney.) |
|
Morocco's 2014 DST start will be as predicted. |
(Thanks to Sebastien Willemijns.) |
|
|
Release 2014a - 2014-03-07 23:30:29 -0800 |
|
Changes affecting near-future time stamps |
|
Turkey begins DST on 2014-03-31, not 03-30. (Thanks to Faruk Pasin for |
the heads-up, and to Tim Parenti for simplifying the update.) |
|
Changes affecting past time stamps |
|
Fiji ended DST on 2014-01-19 at 02:00, not the previously-scheduled 03:00. |
(Thanks to Steffen Thorsen.) |
|
Ukraine switched from Moscow to Eastern European time on 1990-07-01 |
(not 1992-01-01), and observed DST during the entire next winter. |
(Thanks to Vladimir in Moscow via Alois Treindl.) |
|
In 1988 Israel observed DST from 04-10 to 09-04, not 04-09 to 09-03. |
(Thanks to Avigdor Finkelstein.) |
|
Changes affecting code |
|
A uninitialized-storage bug in 'localtime' has been fixed. |
(Thanks to Logan Chien.) |
|
Changes affecting the build procedure |
|
The settings for 'make check_web' now default to Ubuntu 13.10. |
|
Changes affecting commentary and documentation |
|
The boundary of the US Pacific time zone is given more accurately. |
(Thanks to Alan Mintz.) |
|
Chile's 2014 DST will be as predicted. (Thanks to José Miguel Garrido.) |
|
Paraguay's 2014 DST will be as predicted. (Thanks to Carlos Raúl Perasso.) |
|
Better descriptions of countries with same time zone history as |
Trinidad and Tobago since 1970. (Thanks to Alan Barrett for suggestion.) |
|
Several changes affect tz-link.htm, the main web page. |
|
Mention Time.is (thanks to Even Scharning) and WX-now (thanks to |
David Braverman). |
|
Mention xCal (Internet RFC 6321) and jCal. |
|
Microsoft has some support for tz database names. |
|
CLDR data formats include both XML and JSON. |
|
Mention Maggiolo's map of solar vs standard time. |
(Thanks to Arthur David Olson.) |
|
Mention TZ4Net. (Thanks to Matt Johnson.) |
|
Mention the timezone-olson Haskell package. |
|
Mention zeitverschiebung.net. (Thanks to Martin Jäger.) |
|
Remove moribund links to daylight-savings-time.info and to |
Simple Timer + Clocks. |
|
Update two links. (Thanks to Oscar van Vlijmen.) |
|
Fix some formatting glitches, e.g., remove random newlines from |
abbr elements' title attributes. |
|
|
Release 2013i - 2013-12-17 07:25:23 -0800 |
|
Changes affecting near-future time stamps: |
|
Jordan switches back to standard time at 00:00 on December 20, 2013. |
The 2006-2011 transition schedule is planned to resume in 2014. |
(Thanks to Steffen Thorsen.) |
|
Changes affecting past time stamps: |
|
In 2004, Cuba began DST on March 28, not April 4. |
(Thanks to Steffen Thorsen.) |
|
Changes affecting code |
|
The compile-time flag NOSOLAR has been removed, as nowadays the |
benefit of slightly shrinking runtime table size is outweighed by the |
cost of disallowing potential future updates that exceed old limits. |
|
Changes affecting documentation and commentary |
|
The files solar87, solar88, and solar89 are no longer distributed. |
They were a negative experiment - that is, a demonstration that |
tz data can represent solar time only with some difficulty and error. |
Their presence in the distribution caused confusion, as Riyadh |
civil time was generally not solar time in those years. |
|
tz-link.htm now mentions Noda Time. (Thanks to Matt Johnson.) |
|
|
Release 2013h - 2013-10-25 15:32:32 -0700 |
|
Changes affecting current and future time stamps: |
|
Libya has switched its time zone back to UTC+2 without DST, |
instead of UTC+1 with DST. (Thanks to Even Scharning.) |
|
Western Sahara (Africa/El_Aaiun) uses Morocco's DST rules. |
(Thanks to Gwillim Law.) |
|
Changes affecting future time stamps: |
|
Acre and (we guess) western Amazonas will switch from UTC-4 to UTC-5 |
on 2013-11-10. This affects America/Rio_Branco and America/Eirunepe. |
(Thanks to Steffen Thorsen.) |
|
Add entries for DST transitions in Morocco in the year 2038. |
This avoids some year-2038 glitches introduced in 2013g. |
(Thanks to Yoshito Umaoka for reporting the problem.) |
|
Changes affecting API |
|
The 'tzselect' command no longer requires the 'select' command, |
and should now work with /bin/sh on more platforms. It also works |
around a bug in BusyBox awk before version 1.21.0. (Thanks to |
Patrick 'P. J.' McDermott and Alan Barrett.) |
|
Changes affecting code |
|
Fix localtime overflow bugs with 32-bit unsigned time_t. |
|
zdump no longer assumes sscanf returns maximal values on overflow. |
|
Changes affecting the build procedure |
|
The builder can specify which programs to use, if any, instead of |
'ar' and 'ranlib', and libtz.a is now built locally before being |
installed. (Thanks to Michael Forney.) |
|
A dependency typo in the 'zdump' rule has been fixed. |
(Thanks to Andrew Paprocki.) |
|
The Makefile has been simplified by assuming that 'mkdir -p' and 'cp -f' |
work as specified by POSIX.2-1992 or later; this is portable nowadays. |
|
'make clean' no longer removes 'leapseconds', since it's |
host-independent and is part of the distribution. |
|
The unused makefile macros TZCSRCS, TZDSRCS, DATESRCS have been removed. |
|
Changes affecting documentation and commentary |
|
tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol |
(thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). |
|
Update URLs in tz-link page. Add URLs for Microsoft Windows, since |
8.1 introduces tz support. Remove URLs for Tru64 and UnixWare (no |
longer maintained) and for old advisories. SOFA now does C. |
|
Release 2013g - 2013-09-30 21:08:26 -0700 |
|
Changes affecting current and near-future time stamps |
|
Morocco now observes DST from the last Sunday in March to the last |
Sunday in October, not April to September respectively. (Thanks |
to Steffen Thorsen.) |
|
Changes affecting 'zic' |
|
'zic' now runs on platforms that lack both hard links and symlinks. |
(Thanks to Theo Veenker for reporting the problem, for MinGW.) |
Also, fix some bugs on platforms that lack hard links but have symlinks. |
|
'zic -v' again warns that Asia/Tehran has no POSIX environment variable |
to predict the far future, fixing a bug introduced in 2013e. |
|
Changes affecting the build procedure |
|
The 'leapseconds' file is again put into the tzdata tarball. |
Also, 'leapseconds.awk', so tzdata is self-contained. (Thanks to |
Matt Burgess and Ian Abbott.) The timestamps of these and other |
dependent files in tarballs are adjusted more consistently. |
|
Changes affecting documentation and commentary |
|
The README file is now part of the data tarball as well as the code. |
It now states that files are public domain unless otherwise specified. |
(Thanks to Andrew Main (Zefram) for asking for clarifications.) |
Its details about the 1989 release moved to a place of honor near |
the end of NEWS. |
|
|
Release 2013f - 2013-09-24 23:37:36 -0700 |
|
Changes affecting near-future time stamps |
|
Tocantins will very likely not observe DST starting this spring. |
(Thanks to Steffen Thorsen.) |
|
Jordan will likely stay at UTC+3 indefinitely, and will not fall |
back this fall. |
|
Palestine will fall back at 00:00, not 01:00. (Thanks to Steffen Thorsen.) |
|
Changes affecting API |
|
The types of the global variables 'timezone' and 'altzone' (if present) |
have been changed back to 'long'. This is required for 'timezone' |
by POSIX, and for 'altzone' by common practice, e.g., Solaris 11. |
These variables were originally 'long' in the tz code, but were |
mistakenly changed to 'time_t' in 1987; nobody reported the |
incompatibility until now. The difference matters on x32, where |
'long' is 32 bits and 'time_t' is 64. (Thanks to Elliott Hughes.) |
|
Changes affecting the build procedure |
|
Avoid long strings in leapseconds.awk to work around a mawk bug. |
(Thanks to Cyril Baurand.) |
|
Changes affecting documentation and commentary |
|
New file 'NEWS' that contains release notes like this one. |
|
Paraguay's law does not specify DST transition time; 00:00 is customary. |
(Thanks to Waldemar Villamayor-Venialbo.) |
|
Minor capitalization fixes. |
|
Changes affecting version-control only |
|
The experimental GitHub repository now contains annotated and |
signed tags for recent releases, e.g., '2013e' for Release 2013e. |
Releases are tagged starting with 2012e; earlier releases were |
done differently, and tags would either not have a simple name or |
not exactly match what was released. |
|
'make set-timestamps' is now simpler and a bit more portable. |
|
|
Release 2013e - 2013-09-19 23:50:04 -0700 |
|
Changes affecting near-future time stamps |
|
This year Fiji will start DST on October 27, not October 20. |
(Thanks to David Wheeler for the heads-up.) For now, guess that |
Fiji will continue to spring forward the Sunday before the fourth |
Monday in October. |
|
Changes affecting current and future time zone abbreviations |
|
Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian |
time zone abbreviations since 1932. (Thanks to George Ziegler, |
Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and |
Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura, |
Asia/Makassar, and Asia/Pontianak. |
|
Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but |
daylight saving time) for San Luis, Argentina since 2009. |
|
Changes affecting Godthåb time stamps after 2037 if version mismatch |
|
Allow POSIX-like TZ strings where the transition time's hour can |
range from -167 through 167, instead of the POSIX-required 0 |
through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the |
new Fiji rules. This is a more-compact way to represent |
far-future time stamps for America/Godthab, America/Santiago, |
Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem, |
Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by |
this change. (Derived from a suggestion by Arthur David Olson.) |
|
Allow POSIX-like TZ strings where daylight saving time is in |
effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western |
Argentina Summer Time all year. This supports a more-compact way |
to represent the 2013d data for America/Argentina/San_Luis. |
Because of the change for San Luis noted above this change does not |
affect the current data. (Thanks to Andrew Main (Zefram) for |
suggestions that improved this change.) |
|
Where these two TZ changes take effect, there is a minor extension |
to the tz file format in that it allows new values for the |
embedded TZ-format string, and the tz file format version number |
has therefore been increased from 2 to 3 as a precaution. |
Version-2-based client code should continue to work as before for |
all time stamps before 2038. Existing version-2-based client code |
(tzcode, GNU/Linux, Solaris) has been tested on version-3-format |
files, and typically works in practice even for time stamps after |
2037; the only known exception is America/Godthab. |
|
Changes affecting time stamps before 1970 |
|
Pacific/Johnston is now a link to Pacific/Honolulu. This corrects |
some errors before 1947. |
|
Some zones have been turned into links, when they differ from existing |
zones only in older data entries that were likely invented or that |
differ only in LMT or transitions from LMT. These changes affect |
only time stamps before 1943. The affected zones are: |
Africa/Juba, America/Anguilla, America/Aruba, America/Dominica, |
America/Grenada, America/Guadeloupe, America/Marigot, |
America/Montserrat, America/St_Barthelemy, America/St_Kitts, |
America/St_Lucia, America/St_Thomas, America/St_Vincent, |
America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for |
confirming that the old Europe/Vaduz zone was wrong and the new |
link is better for WWII-era times.) |
|
Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects |
America/Cayman, America/Jamaica and America/Grand_Turk time stamps |
from 1890 to 1912. |
|
Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46. |
This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks |
to Alois Treindl). |
|
Change the date of the circa-1850 Zurich transition from 1849-09-12 |
to 1853-07-16, overriding Shanks with data from Messerli about |
postal and telegraph time in Switzerland. |
|
Changes affecting time zone abbreviations before 1970 |
|
For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932, |
as Jakarta was called Batavia back then. |
|
Changes affecting API |
|
The 'zic' command now outputs a dummy transition when far-future |
data can't be summarized using a TZ string, and uses a 402-year |
window rather than a 400-year window. For the current data, this |
affects only the Asia/Tehran file. It does not affect any of the |
time stamps that this file represents, so zdump outputs the same |
information as before. (Thanks to Andrew Main (Zefram).) |
|
The 'date' command has a new '-r' option, which lets you specify |
the integer time to display, a la FreeBSD. |
|
The 'tzselect' command has two new options '-c' and '-n', which lets you |
select a zone based on latitude and longitude. |
|
The 'zic' command's '-v' option now warns about constructs that |
require the new version-3 binary file format. (Thanks to Arthur |
David Olson for the suggestion.) |
|
Support for floating-point time_t has been removed. |
It was always dicey, and POSIX no longer requires it. |
(Thanks to Eric Blake for suggesting to the POSIX committee to |
remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy |
Heninger, Arthur David Olson, and Alois Treindl, for reporting |
bugs and elucidating some of the corners of the old floating-point |
implementation.) |
|
The signatures of 'offtime', 'timeoff', and 'gtime' have been |
changed back to the old practice of using 'long' to represent UT |
offsets. This had been inadvertently and mistakenly changed to |
'int_fast32_t'. (Thanks to Christos Zoulas.) |
|
The code avoids undefined behavior on integer overflow in some |
more places, including gmtime, localtime, mktime and zdump. |
|
Changes affecting the zdump utility |
|
zdump now outputs "UT" when referring to Universal Time, not "UTC". |
"UTC" does not make sense for time stamps that predate the introduction |
of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen |
for clarifying UT vs UTC.) |
|
Data changes affecting behavior of tzselect and similar programs |
|
Country code BQ is now called the more-common name "Caribbean Netherlands" |
rather than the more-official "Bonaire, St Eustatius & Saba". |
|
Remove from zone.tab the names America/Montreal, America/Shiprock, |
and Antarctica/South_Pole, as they are equivalent to existing |
same-country-code zones for post-1970 time stamps. The data entries for |
these names are unchanged, so the names continue to work as before. |
|
Changes affecting code internals |
|
zic -c now runs way faster on 64-bit hosts when given large numbers. |
|
zic now uses vfprintf to avoid allocating and freeing some memory. |
|
tzselect now computes the list of continents from the data, |
rather than have it hard-coded. |
|
Minor changes pacify GCC 4.7.3 and GCC 4.8.1. |
|
Changes affecting the build procedure |
|
The 'leapseconds' file is now generated automatically from a |
new file 'leap-seconds.list', which is a copy of |
<ftp://time.nist.gov/pub/leap-seconds.list>. |
A new source file 'leapseconds.awk' implements this. |
The goal is simplification of the future maintenance of 'leapseconds'. |
|
When building the 'posix' or 'right' subdirectories, if the |
subdirectory would be a copy of the default subdirectory, it is |
now made a symbolic link if that is supported. This saves about |
2 MB of file system space. |
|
The links America/Shiprock and Antarctica/South_Pole have been |
moved to the 'backward' file. This affects only nondefault builds |
that omit 'backward'. |
|
Changes affecting version-control only |
|
.gitignore now ignores 'date'. |
|
Changes affecting documentation and commentary |
|
Changes to the 'tzfile' man page |
|
It now mentions that the binary file format may be extended in |
future versions by appending data. |
|
It now refers to the 'zdump' and 'zic' man pages. |
|
Changes to the 'zic' man page |
|
It lists conditions that elicit a warning with '-v'. |
|
It says that the behavior is unspecified when duplicate names |
are given, or if the source of one link is the target of another. |
|
Its examples are updated to match the latest data. |
|
The definition of white space has been clarified slightly. |
(Thanks to Michael Deckers.) |
|
Changes to the 'Theory' file |
|
There is a new section about the accuracy of the tz database, |
describing the many ways that errors can creep in, and |
explaining why so many of the pre-1970 time stamps are wrong or |
misleading (thanks to Steve Allen, Lester Caine, and Garrett |
Wollman for discussions that contributed to this). |
|
The 'Theory' file describes LMT better (this follows a |
suggestion by Guy Harris). |
|
It refers to the 2013 edition of POSIX rather than the 2004 edition. |
|
It's mentioned that excluding 'backward' should not affect the |
other data, and it suggests at least one zone.tab name per |
inhabited country (thanks to Stephen Colebourne). |
|
Some longstanding restrictions on names are documented, e.g., |
'America/New_York' precludes 'America/New_York/Bronx'. |
|
It gives more reasons for the 1970 cutoff. |
|
It now mentions which time_t variants are supported, such as |
signed integer time_t. (Thanks to Paul Goyette for reporting |
typos in an experimental version of this change.) |
|
(Thanks to Philip Newton for correcting typos in these changes.) |
|
Documentation and commentary is more careful to distinguish UT in |
general from UTC in particular. (Thanks to Steve Allen.) |
|
Add a better source for the Zurich 1894 transition. |
(Thanks to Pierre-Yves Berger.) |
|
Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.) |
|
|
Release 2013d - 2013-07-05 07:38:01 -0700 |
|
Changes affecting future time stamps: |
|
Morocco's midsummer transitions this year are July 7 and August 10, |
not July 9 and August 8. (Thanks to Andrew Paprocki.) |
|
Israel now falls back on the last Sunday of October. |
(Thanks to Ephraim Silverberg.) |
|
Changes affecting past time stamps: |
|
Specify Jerusalem's location more precisely; this changes the pre-1880 |
times by 2 s. |
|
Changing affecting metadata only: |
|
Fix typos in the entries for country codes BQ and SX. |
|
Changes affecting code: |
|
Rework the code to fix a bug with handling Australia/Macquarie on |
32-bit hosts (thanks to Arthur David Olson). |
|
Port to platforms like NetBSD, where time_t can be wider than long. |
|
Add support for testing time_t types other than the system's. |
Run 'make check_time_t_alternatives' to try this out. |
Currently, the tests fail for unsigned time_t; |
this should get fixed at some point. |
|
Changes affecting documentation and commentary: |
|
Deemphasize the significance of national borders. |
|
Update the zdump man page. |
|
Remove obsolete NOID comment (thanks to Denis Excoffier). |
|
Update several URLs and comments in the web pages. |
|
Spelling fixes (thanks to Kevin Lyda and Jonathan Leffler). |
|
Update URL for CLDR Zone->Tzid table (thanks to Yoshito Umaoka). |
|
|
Release 2013c - 2013-04-19 16:17:40 -0700 |
|
Changes affecting current and future time stamps: |
|
Palestine observed DST starting March 29, 2013. (Thanks to |
Steffen Thorsen.) From 2013 on, Gaza and Hebron both observe DST, |
with the predicted rules being the last Thursday in March at 24:00 |
to the first Friday on or after September 21 at 01:00. |
|
Assume that the recent change to Paraguay's DST rules is permanent, |
by moving the end of DST to the 4th Sunday in March every year. |
(Thanks to Carlos Raúl Perasso.) |
|
Changes affecting past time stamps: |
|
Fix some historical data for Palestine to agree with that of |
timeanddate.com, as follows: |
|
The spring 2008 change in Gaza and Hebron was on 00:00 Mar 28, not |
00:00 Apr 1. |
|
The fall 2009 change in Gaza and Hebron on Sep 4 was at 01:00, not |
02:00. |
|
The spring 2010 change in Hebron was 00:00 Mar 26, not 00:01 Mar 27. |
|
The spring 2011 change in Gaza was 00:01 Apr 1, not 12:01 Apr 2. |
|
The spring 2011 change in Hebron on Apr 1 was at 00:01, not 12:01. |
|
The fall 2011 change in Hebron on Sep 30 was at 00:00, not 03:00. |
|
Fix times of habitation for Macquarie to agree with the Tasmania |
Parks & Wildlife Service history, which indicates that permanent |
habitation was 1899-1919 and 1948 on. |
|
Changing affecting metadata only: |
|
Macquarie Island is politically part of Australia, not Antarctica. |
(Thanks to Tobias Conradi.) |
|
Sort Macquarie more-consistently with other parts of Australia. |
(Thanks to Tim Parenti.) |
|
|
Release 2013b - 2013-03-10 22:33:40 -0700 |
|
Changes affecting current and future time stamps: |
|
Haiti uses US daylight-saving rules this year, and presumably future years. |
This changes time stamps starting today. (Thanks to Steffen Thorsen.) |
|
Paraguay will end DST on March 24 this year. |
(Thanks to Steffen Thorsen.) For now, assume it's just this year. |
|
Morocco does not observe DST during Ramadan; |
try to predict Ramadan in Morocco as best we can. |
(Thanks to Erik Homoet for the heads-up.) |
|
Changes affecting commentary: |
|
Update URLs in tz-link page. Add URLs for webOS, BB10, iOS. |
Update URL for Solaris. Mention Internet RFC 6557. |
Update Internet RFCs 2445->5545, 2822->5322. |
Switch from FTP to HTTP for Internet RFCs. |
|
|
Release 2013a - 2013-02-27 09:20:35 -0800 |
|
Change affecting binary data format: |
|
The zone offset at the end of version-2-format zone files is now |
allowed to be 24:00, as per POSIX.1-2008. (Thanks to Arthur David Olson.) |
|
Changes affecting current and future time stamps: |
|
Chile's 2013 rules, and we guess rules for 2014 and later, will be |
the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC. |
(Thanks to Steffen Thorsen and Robert Elz.) |
|
New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen. |
(Thanks to Tobias Conradi and Arthur David Olson.) |
|
Many changes affect historical time stamps before 1940. |
These were deduced from: Milne J. Civil time. Geogr J. 1899 |
Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>. |
|
Changes affecting the code: |
|
Fix zic bug that mishandled Egypt's 2010 changes (this also affected |
the data). (Thanks to Arthur David Olson.) |
|
Fix localtime bug when time_t is unsigned and data files were generated |
by a signed time_t system. (Thanks to Doug Bailey for reporting and |
to Arthur David Olson for fixing.) |
|
Allow the email address for bug reports to be set by the packager. |
The default is tz@iana.org, as before. (Thanks to Joseph S. Myers.) |
|
Update HTML checking to be compatible with Ubuntu 12.10. |
|
Check that files are a safe subset of ASCII. At some point we may |
relax this requirement to a safe subset of UTF-8. Without the |
check, some non-UTF-8 encodings were leaking into the distribution. |
|
Commentary changes: |
|
Restore a comment about copyright notices that was inadvertently deleted. |
(Thanks to Arthur David Olson.) |
|
Improve the commentary about which districts observe what times |
in Russia. (Thanks to Oscar van Vlijmen and Arthur David Olson). |
|
Add web page links to tz.js. |
|
Add "Run by the Monkeys" to tz-art. (Thanks to Arthur David Olson.) |
|
|
Release 2012j - 2012-11-12 18:34:49 -0800 |
|
Libya moved to CET this weekend, but with DST planned next year. |
(Thanks to Even Scharning, Steffen Thorsen, and Tim Parenti.) |
|
Signatures now have the extension .asc, not .sign, as that's more |
standard. (Thanks to Phil Pennock.) |
|
The output of 'zdump --version', and of 'zic --version', now |
uses a format that is more typical for --version. |
(Thanks to Joseph S. Myers.) |
|
The output of 'tzselect --help', 'zdump --help', and 'zic --help' |
now uses tz@iana.org rather than the old elsie address. |
|
zic -v now complains about abbreviations that are less than 3 |
or more than 6 characters, as per Posix. Formerly, it checked |
for abbreviations that were more than 3. |
|
'make public' no longer puts its temporary directory under /tmp, |
and uses the just-built zic rather than the system zic. |
|
Various fixes to documentation and commentary. |
|
|
Release 2012i - 2012-11-03 12:57:09 -0700 |
|
Cuba switches from DST tomorrow at 01:00. (Thanks to Steffen Thorsen.) |
|
Linker flags can now be specified via LDFLAGS. |
AWK now defaults to 'awk', not 'nawk'. |
The shell in tzselect now defaults to /bin/bash, but this can |
be overridden by specifying KSHELL. |
The main web page now mentions the unofficial GitHub repository. |
(Thanks to Mike Frysinger.) |
|
Tarball signatures can now be built by running 'make signatures'. |
There are also new makefile rules 'tarballs', 'check_public', and |
separate makefile rules for each tarball and signature file. |
A few makefile rules are now more portable to strict POSIX. |
|
The main web page now lists the canonical IANA URL. |
|
|
Release 2012h - 2012-10-26 22:49:10 -0700 |
|
Bahia no longer has DST. (Thanks to Kelley Cook.) |
|
Tocantins has DST. (Thanks to Rodrigo Severo.) |
|
Israel has new DST rules next year. (Thanks to Ephraim Silverberg.) |
|
Jordan stays on DST this winter. (Thanks to Steffen Thorsen.) |
|
Web page updates. |
|
More C modernization, except that at Arthur David Olson's suggestion |
the instances of 'register' were kept. |
|
|
Release 2012g - 2012-10-17 20:59:45 -0700 |
|
Samoa fall 2012 and later. (Thanks to Nicholas Pereira and Robert Elz.) |
|
Palestine fall 2012. (Thanks to Steffen Thorsen.) |
|
Assume C89. |
|
To attack the version-number problem, this release ships the file |
'Makefile' (which contains the release number) in both the tzcode and |
the tzdata tarballs. The two Makefiles are identical, and should be |
identical in any matching pair of tarballs, so it shouldn't matter |
which order you extract the tarballs. Perhaps we can come up with a |
better version-number scheme at some point; this scheme does have the |
virtue of not adding more files. |
|
|
Release 2012f - 2012-09-12 23:17:03 -0700 |
|
* australasia (Pacific/Fiji): Fiji DST is October 21 through January |
20 this year. (Thanks to Steffen Thorsen.) |
|
|
Release 2012e - 2012-08-02 20:44:55 -0700 |
|
* australasia (Pacific/Fakaofo): Tokelau is UTC+13, not UTC+14. |
(Thanks to Steffen Thorsen.) |
|
* Use a single version number for both code and data. |
|
* .gitignore: New file. |
|
* Remove trailing white space. |
|
|
Release code2012c-data2012d - 2012-07-19 16:35:33 -0700 |
|
Changes for Morocco's time stamps, which take effect in a couple of |
hours, along with infrastructure changes to accommodate how the tz |
code and data are released on IANA. |
|
|
Release data2012c - 2012-03-27 12:17:25 -0400 |
|
africa |
Summer time changes for Morocco (to start late April 2012) |
|
asia |
Changes for 2012 for Gaza & the West Bank (Hebron) and Syria |
|
northamerica |
Haiti following US/Canada rules for 2012 (and we're assuming, |
for now anyway, for the future). |
|
|
Release 2012b - 2012-03-02 12:29:15 +0700 |
|
There is just one change to tzcode2012b (compared with 2012a): |
the Makefile that was accidentally included with 2012a has been |
replaced with the version that should have been there, which is |
identical with the previous version (from tzcode2011i). |
|
There are just two changes in tzdata2012b compared with 2012a. |
|
Most significantly, summer time in Cuba has been delayed 3 weeks |
(now starts April 1 rather than March 11). Since Mar 11 (the old start |
date, as listed in 2012a) is just a little over a week away, this |
change is urgent. |
|
Less importantly, an excess tab in one of the changes in zone.tab |
in 2012a has been removed. |
|
|
Release 2012a - 2012-03-01 18:28:10 +0700 |
|
The changes in tzcode2012a (compared to the previous version, 2011i) |
are entirely to the README and tz-art.htm and tz-link.htm files, if |
none of those concern you, you can ignore the code update. The changes |
reflect the changed addresses for the mailing list and the code and |
data distribution points & methods (and a link to DateTime::TimeZone::Tzfile |
has been added to tz-link.htm). |
|
In tzdata2012a (compared to the previous release, which was 2011n) |
the major changes are: |
Chile 2011/2012 and 2012/2013 summer time date adjustments. |
Falkland Islands onto permanent summer time (we're assuming for the |
foreseeable future, though 2012 is all we're fairly certain of.) |
Armenia has abolished Summer Time. |
Tokelau jumped the International Date Line back last December |
(just the same as their near neighbour, Samoa). |
America/Creston is a new zone for a small area of British Columbia |
There will be a leapsecond 2012-06-30 23:59:60 UTC. |
|
Other minor changes are: |
Corrections to 1918 Canadian summer time end dates. |
Updated URL for UK time zone history (in comments) |
A few typos in Le Corre's list of free French place names (comments) |
|
|
Release data2011n - 2011-10-30 14:57:54 +0700 |
|
There are three changes of note - most urgently, Cuba (America/Havana) |
has extended summer time by two weeks, now to end on Nov 13, rather than |
the (already past) Oct 30. Second, the Pridnestrovian Moldavian Republic |
(Europe/Tiraspol) decided not to split from the rest of Moldova after |
all, and consequently that zone has been removed (again) and reinstated |
in the "backward" file as a link to Europe/Chisinau. And third, the |
end date for Fiji's summer time this summer was moved forward from the |
earlier planned Feb 26, to Jan 22. |
|
Apart from that, Moldova (MD) returns to a single entry in zone.tab |
(and the incorrect syntax that was in the 2011m version of that file |
is so fixed - it would have been fixed in a different way had this |
change not happened - that's the "missing" sccs version id). |
|
|
Release data2011m - 2011-10-24 21:42:16 +0700 |
|
In particular, the typos in comments in the data (2011-11-17 should have |
been 2011-10-17 as Alan Barrett noted, and spelling of Tiraspol that |
Tim Parenti noted) have been fixed, and the change for Ukraine has been |
made in all 4 Ukrainian zones, rather than just Kiev (again, thanks to |
Tim Parenti, and also Denys Gavrysh) |
|
In addition, I added Europe/Tiraspol to zone.tab. |
|
This time, all the files have new version numbers... (including the files |
otherwise unchanged in 2011m that were changed in 2011l but didn't get new |
version numbers there...) |
|
|
Release data2011l - 2011-10-10 11:15:43 +0700 |
|
There are just 2 changes that cause different generated tzdata files from |
zic, to Asia/Hebron and Pacific/Fiji - the possible change for Bahia, Brazil |
is included, but commented out. Compared with the diff I sent out last week, |
this version also includes attributions for the sources for the changes |
(in much the same format as ado used, but the html tags have not been |
checked, verified, or used in any way at all, so if there are errors there, |
please let me know.) |
|
|
Release data2011k - 2011-09-20 17:54:03 -0400 |
|
[not summarized] |
|
|
Release data2011j - 2011-09-12 09:22:49 -0400 |
|
(contemporary changes for Samoa; past changes for Kenya, Uganda, and |
Tanzania); there are also two spelling corrections to comments in |
the australasia file (with thanks to Christos Zoulas). |
|
|
Release 2011i - 2011-08-29 05:56:32 -0400 |
|
[not summarized] |
|
|
Release data2011h - 2011-06-15 18:41:48 -0400 |
|
Russia and Curaçao changes |
|
|
Release 2011g - 2011-04-25 09:07:22 -0400 |
|
update the rules for Egypt to reflect its abandonment of DST this year |
|
|
Release 2011f - 2011-04-06 17:14:53 -0400 |
|
[not summarized] |
|
|
Release 2011e - 2011-03-31 16:04:38 -0400 |
|
Morocco, Chile, and tz-link changes |
|
|
Release 2011d - 2011-03-14 09:18:01 -0400 |
|
changes that impact present-day time stamps in Cuba, Samoa, and Turkey |
|
|
Release 2011c - 2011-03-07 09:30:09 -0500 |
|
These do affect current time stamps in Chile and Annette Island, Canada. |
|
|
Release 2011b - 2011-02-07 08:44:50 -0500 |
|
[not summarized] |
|
|
Release 2011a - 2011-01-24 10:30:16 -0500 |
|
[not summarized] |
|
|
Release data2010o - 2010-11-01 09:18:23 -0400 |
|
change to the end of DST in Fiji in 2011 |
|
|
Release 2010n - 2010-10-25 08:19:17 -0400 |
|
[not summarized] |
|
|
Release 2010m - 2010-09-27 09:24:48 -0400 |
|
Hong Kong, Vostok, and zic.c changes |
|
|
Release 2010l - 2010-08-16 06:57:25 -0400 |
|
[not summarized] |
|
|
Release 2010k - 2010-07-26 10:42:27 -0400 |
|
[not summarized] |
|
|
Release 2010j - 2010-05-10 09:07:48 -0400 |
|
changes for Bahía de Banderas and for version naming |
|
|
Release data2010i - 2010-04-16 18:50:45 -0400 |
|
the end of DST in Morocco on 2010-08-08 |
|
|
Release data2010h - 2010-04-05 09:58:56 -0400 |
|
[not summarized] |
|
|
Release data2010g - 2010-03-24 11:14:53 -0400 |
|
[not summarized] |
|
|
Release 2010f - 2010-03-22 09:45:46 -0400 |
|
[not summarized] |
|
|
Release data2010e - 2010-03-08 14:24:27 -0500 |
|
corrects the Dhaka bug found by Danvin Ruangchan |
|
|
Release data2010d - 2010-03-06 07:26:01 -0500 |
|
[not summarized] |
|
|
Release 2010c - 2010-03-01 09:20:58 -0500 |
|
changes including KRE's suggestion for earlier initialization of |
"goahead" and "goback" structure elements |
|
|
Release code2010a - 2010-02-16 10:40:04 -0500 |
|
[not summarized] |
|
|
Release data2010b - 2010-01-20 12:37:01 -0500 |
|
Mexico changes |
|
|
Release data2010a - 2010-01-18 08:30:04 -0500 |
|
changes to Dhaka |
|
|
Release data2009u - 2009-12-26 08:32:28 -0500 |
|
changes to DST in Bangladesh |
|
|
Release 2009t - 2009-12-21 13:24:27 -0500 |
|
[not summarized] |
|
|
Release data2009s - 2009-11-14 10:26:32 -0500 |
|
(cosmetic) Antarctica change and the DST-in-Fiji-in-2009-and-2010 change |
|
|
Release 2009r - 2009-11-09 10:10:31 -0500 |
|
"antarctica" and "tz-link.htm" changes |
|
|
Release 2009q - 2009-11-02 09:12:40 -0500 |
|
with two corrections as reported by Eric Muller and Philip Newton |
|
|
Release data2009p - 2009-10-23 15:05:27 -0400 |
|
Argentina (including San Luis) changes (with the correction from |
Mariano Absatz) |
|
|
Release data2009o - 2009-10-14 16:49:38 -0400 |
|
Samoa (commentary only), Pakistan, and Bangladesh changes |
|
|
Release data2009n - 2009-09-22 15:13:38 -0400 |
|
added commentary for Argentina and a change to the end of DST in |
2009 in Pakistan |
|
|
Release data2009m - 2009-09-03 10:23:43 -0400 |
|
Samoa and Palestine changes |
|
|
Release data2009l - 2009-08-14 09:13:07 -0400 |
|
Samoa (comments only) and Egypt |
|
|
Release 2009k - 2009-07-20 09:46:08 -0400 |
|
[not summarized] |
|
|
Release data2009j - 2009-06-15 06:43:59 -0400 |
|
Bangladesh change (with a short turnaround since the DST change is |
impending) |
|
|
Release 2009i - 2009-06-08 09:21:22 -0400 |
|
updating for DST in Bangladesh this year |
|
|
Release 2009h - 2009-05-26 09:19:14 -0400 |
|
[not summarized] |
|
|
Release data2009g - 2009-04-20 16:34:07 -0400 |
|
Cairo |
|
|
Release data2009f - 2009-04-10 11:00:52 -0400 |
|
correct DST in Pakistan |
|
|
Release 2009e - 2009-04-06 09:08:11 -0400 |
|
[not summarized] |
|
|
Release 2009d - 2009-03-23 09:38:12 -0400 |
|
Morocco, Tunisia, Argentina, and American Astronomical Society changes |
|
|
Release data2009c - 2009-03-16 09:47:51 -0400 |
|
change to the start of Cuban DST |
|
|
Release 2009b - 2009-02-09 11:15:22 -0500 |
|
[not summarized] |
|
|
Release 2009a - 2009-01-21 10:09:39 -0500 |
|
[not summarized] |
|
|
Release data2008i - 2008-10-21 12:10:25 -0400 |
|
southamerica and zone.tab files, with Argentina DST rule changes and |
United States zone reordering and recommenting |
|
|
Release 2008h - 2008-10-13 07:33:56 -0400 |
|
[not summarized] |
|
|
Release 2008g - 2008-10-06 09:03:18 -0400 |
|
Fix a broken HTML anchor and update Brazil's DST transitions; |
there's also a slight reordering of information in tz-art.htm. |
|
|
Release data2008f - 2008-09-09 22:33:26 -0400 |
|
[not summarized] |
|
|
Release 2008e - 2008-07-28 14:11:17 -0400 |
|
changes by Arthur David Olson and Jesper Nørgaard Welen |
|
|
Release data2008d - 2008-07-07 09:51:38 -0400 |
|
changes by Arthur David Olson, Paul Eggert, and Rodrigo Severo |
|
|
Release data2008c - 2008-05-19 17:48:03 -0400 |
|
Pakistan, Morocco, and Mongolia |
|
|
Release data2008b - 2008-03-24 08:30:59 -0400 |
|
including renaming Asia/Calcutta to Asia/Kolkata, with a backward |
link provided |
|
|
Release 2008a - 2008-03-08 05:42:16 -0500 |
|
[not summarized] |
|
|
Release 2007k - 2007-12-31 10:25:22 -0500 |
|
most importantly, changes to the "southamerica" file based on |
Argentina's readoption of daylight saving time |
|
|
Release 2007j - 2007-12-03 09:51:01 -0500 |
|
1. eliminate the "P" (parameter) macro; |
|
2. the "noncontroversial" changes circulated on the time zone |
mailing list (less the changes to "logwtmp.c"); |
|
3. eliminate "too many transition" errors when "min" is used in time |
zone rules; |
|
4. changes by Paul Eggert (including updated information for Venezuela). |
|
|
Release data2007i - 2007-10-30 10:28:11 -0400 |
|
changes for Cuba and Syria |
|
|
Release 2007h - 2007-10-01 10:05:51 -0400 |
|
changes by Paul Eggert, as well as an updated link to the ICU |
project in tz-link.htm |
|
|
Release 2007g - 2007-08-20 10:47:59 -0400 |
|
changes by Paul Eggert |
|
The "leapseconds" file has been updated to incorporate the most |
recent International Earth Rotation and Reference Systems Service |
(IERS) bulletin. |
|
There's an addition to tz-art.htm regarding the television show "Medium". |
|
|
Release 2007f - 2007-05-07 10:46:46 -0400 |
|
changes by Paul Eggert (including Haiti, Turks and Caicos, and New |
Zealand) |
|
changes to zic.c to allow hour values greater than 24 (along with |
Paul's improved time value overflow checking) |
|
|
Release 2007e - 2007-04-02 10:11:52 -0400 |
|
Syria and Honduras changes by Paul Eggert |
|
zic.c variable renaming changes by Arthur David Olson |
|
|
Release 2007d - 2007-03-20 08:48:30 -0400 |
|
changes by Paul Eggert |
|
the elimination of white space at the ends of lines |
|
|
Release 2007c - 2007-02-26 09:09:37 -0500 |
|
changes by Paul Eggert |
|
|
Release 2007b - 2007-02-12 09:34:20 -0500 |
|
Paul Eggert's proposed change to the quotation handling logic in zic.c. |
|
changes to the commentary in "leapseconds" reflecting the IERS |
announcement that there is to be no positive leap second at the end |
of June 2007. |
|
|
Release 2007a - 2007-01-08 12:28:29 -0500 |
|
changes by Paul Eggert |
|
Derick Rethan's Asmara change |
|
Oscar van Vlijmen's Easter Island local mean time change |
|
symbolic link changes |
|
|
Release 2006p - 2006-11-27 08:54:27 -0500 |
|
changes by Paul Eggert |
|
|
Release 2006o - 2006-11-06 09:18:07 -0500 |
|
changes by Paul Eggert |
|
|
Release 2006n - 2006-10-10 11:32:06 -0400 |
|
changes by Paul Eggert |
|
|
Release 2006m - 2006-10-02 15:32:35 -0400 |
|
changes for Uruguay, Palestine, and Egypt by Paul Eggert |
|
(minimalist) changes to zic.8 to clarify "until" information |
|
|
Release data2006l - 2006-09-18 12:58:11 -0400 |
|
Paul's best-effort work on this coming weekend's Egypt time change |
|
|
Release 2006k - 2006-08-28 12:19:09 -0400 |
|
changes by Paul Eggert |
|
|
Release 2006j - 2006-08-21 09:56:32 -0400 |
|
changes by Paul Eggert |
|
|
Release code2006i - 2006-08-07 12:30:55 -0400 |
|
localtime.c fixes |
|
Ken Pizzini's conversion script |
|
|
Release code2006h - 2006-07-24 09:19:37 -0400 |
|
adds public domain notices to four files |
|
includes a fix for transition times being off by a second |
|
adds a new recording to the "arts" file (information courtesy Colin Bowern) |
|
|
Release 2006g - 2006-05-08 17:18:09 -0400 |
|
northamerica changes by Paul Eggert |
|
|
Release 2006f - 2006-05-01 11:46:00 -0400 |
|
a missing version number problem is fixed (with thanks to Bradley |
White for catching the problem) |
|
|
Release 2006d - 2006-04-17 14:33:43 -0400 |
|
changes by Paul Eggert |
|
added new items to tz-arts.htm that were found by Paul |
|
|
Release 2006c - 2006-04-03 10:09:32 -0400 |
|
two sets of data changes by Paul Eggert |
|
a fencepost error fix in zic.c |
|
changes to zic.c and the "europe" file to minimize differences |
between output produced by the old 32-bit zic and the new 64-bit |
version |
|
|
Release 2006b - 2006-02-20 10:08:18 -0500 |
[tz32code2006b + tz64code2006b + tzdata2006b] |
|
64-bit code |
|
All SCCS IDs were bumped to "8.1" for this release. |
|
|
Release 2006a - 2006-01-30 08:59:31 -0500 |
|
changes by Paul Eggert (in particular, Indiana time zone moves) |
|
an addition to the zic manual page to describe how special-case |
transitions are handled |
|
|
Release 2005r - 2005-12-27 09:27:13 -0500 |
|
Canadian changes by Paul Eggert |
|
They also add "<pre>" directives to time zone data files and reflect |
changes to warning message logic in "zdump.c" (but with calls to |
"gettext" kept unbundled at the suggestion of Ken Pizzini). |
|
|
Release 2005q - 2005-12-13 09:17:09 -0500 |
|
Nothing earth-shaking here: |
1. Electronic mail addresses have been removed. |
2. Casts of the return value of exit have been removed. |
3. Casts of the argument of is.* macros have been added. |
4. Indentation in one section of zic.c has been fixed. |
5. References to dead URLs in the data files have been dealt with. |
|
|
Release 2005p - 2005-12-05 10:30:53 -0500 |
|
"systemv", "tz-link.htm", and "zdump.c" changes |
(less the casts of arguments to the is* macros) |
|
|
Release 2005o - 2005-11-28 10:55:26 -0500 |
|
Georgia, Cuba, Nicaragua, and Jordan changes by Paul Eggert |
|
zdump.c lint fixes by Arthur David Olson |
|
|
Release 2005n - 2005-10-03 09:44:09 -0400 |
|
changes by Paul Eggert (both the Uruguay changes and the Kyrgyzstan |
et al. changes) |
|
|
Release 2005m - 2005-08-29 12:15:40 -0400 |
|
changes by Paul Eggert (with a small tweak to the tz-art change) |
|
a declaration of an unused variable has been removed from zdump.c |
|
|
Release 2005l - 2005-08-22 12:06:39 -0400 |
|
changes by Paul Eggert |
|
overflow/underflow checks by Arthur David Olson, minus changes to |
the "Theory" file about the pending addition of 64-bit data (I grow |
less confident of the changes being accepted with each passing day, |
and the changes no longer increase the data files nine-fold--there's |
less than a doubling in size by my local Sun's reckoning) |
|
|
Release 2005k - 2005-07-14 14:14:24 -0400 |
|
The "leapseconds" file has been edited to reflect the recently |
announced leap second at the end of 2005. |
|
I've also deleted electronic mail addresses from the files as an |
anti-spam measure. |
|
|
Release 2005j - 2005-06-13 14:34:13 -0400 |
|
These reflect changes to limit the length of time zone abbreviations |
and the characters used in those abbreviations. |
|
There are also changes to handle POSIX-style "quoted" time zone |
environment variables. |
|
The changes were circulated on the time zone mailing list; the only |
change since then was the removal of a couple of minimum-length of |
abbreviation checks. |
|
|
Release data2005i - 2005-04-21 15:04:16 -0400 |
|
changes (most importantly to Nicaragua and Haiti) by Paul Eggert |
|
|
Release 2005h - 2005-04-04 11:24:47 -0400 |
|
changes by Paul Eggert |
|
minor changes to Makefile and zdump.c to produce more useful output |
when doing a "make typecheck" |
|
|
Release 2005g - 2005-03-14 10:11:21 -0500 |
|
changes by Paul Eggert (a change to current DST rules in Uruguay and |
an update to a link to time zone software) |
|
|
Release 2005f - 2005-03-01 08:45:32 -0500 |
|
data and documentation changes by Paul Eggert |
|
|
Release 2005e - 2005-02-10 15:59:44 -0500 |
|
[not summarized] |
|
|
Release code2005d - 2005-01-31 09:21:47 -0500 |
|
make zic complain about links to links if the -v flag is used |
|
have "make public" do more code checking |
|
add an include to "localtime.c" for the benefit of gcc systems |
|
|
Release 2005c - 2005-01-17 18:36:29 -0500 |
|
get better results when mktime runs on a system where time_t is double |
|
changes to the data files (most importantly to Paraguay) |
|
|
Release 2005b - 2005-01-10 09:19:54 -0500 |
|
Get localtime and gmtime working on systems with exotic time_t types. |
|
Update the leap second commentary in the "leapseconds" file. |
|
|
Release 2005a - 2005-01-01 13:13:44 -0500 |
|
[not summarized] |
|
|
Release code2004i - 2004-12-14 13:42:58 -0500 |
|
Deal with systems where time_t is unsigned. |
|
|
Release code2004h - 2004-12-07 11:40:18 -0500 |
|
64-bit-time_t changes |
|
|
Release 2004g - 2004-11-02 09:06:01 -0500 |
|
update to Cuba (taking effect this weekend) |
|
other changes by Paul Eggert |
|
correction of the spelling of Oslo |
|
changed versions of difftime.c and private.h |
|
|
Release code2004f - 2004-10-21 10:25:22 -0400 |
|
Cope with wide-ranging tm_year values. |
|
|
Release 2004e - 2004-10-11 14:47:21 -0400 |
|
Brazil/Argentina/Israel changes by Paul Eggert |
|
changes to tz-link.htm by Paul |
|
one small fix to Makefile |
|
|
Release 2004d - 2004-09-22 08:27:29 -0400 |
|
Avoid overflow problems when TM_YEAR_BASE is added to an integer. |
|
|
Release 2004c - 2004-08-11 12:06:26 -0400 |
|
asctime-related changes |
|
(variants of) some of the documentation changes suggested by Paul Eggert |
|
|
Release 2004b - 2004-07-19 14:33:35 -0400 |
|
data changes by Paul Eggert - most importantly, updates for Argentina |
|
|
Release 2004a - 2004-05-27 12:00:47 -0400 |
|
changes by Paul Eggert |
|
Handle DST transitions that occur at the end of a month in some |
years but at the start of the following month in other years. |
|
Add a copy of the correspondence that's the basis for claims about |
DST in the Navajo Nation. |
|
|
Release 2003e - 2003-12-15 09:36:47 -0500 |
|
changes by Arthur David Olson (primarily code changes) |
|
changes by Paul Eggert (primarily data changes) |
|
minor changes to "Makefile" and "northamerica" (in the latter case, |
optimization of the "Toronto" rules) |
|
|
Release 2003d - 2003-10-06 09:34:44 -0400 |
|
changes by Paul Eggert |
|
|
Release 2003c - 2003-09-16 10:47:05 -0400 |
|
Fix bad returns in zic.c's inleap function. |
Thanks to Bradley White for catching the problem! |
|
|
Release 2003b - 2003-09-16 07:13:44 -0400 |
|
Add a "--version" option (and documentation) to the zic and zdump commands. |
|
changes to overflow/underflow checking in zic |
|
a localtime typo fix. |
|
Update the leapseconds and tz-art.htm files. |
|
|
Release 2003a - 2003-03-24 09:30:54 -0500 |
|
changes by Paul Eggert |
|
a few additions and modifications to the tz-art.htm file |
|
|
Release 2002d - 2002-10-15 13:12:42 -0400 |
|
changes by Paul Eggert, less the "Britain (UK)" change in iso3166.tab |
|
There's also a new time zone quote in "tz-art.htm". |
|
|
Release 2002c - 2002-04-04 11:55:20 -0500 |
|
changes by Paul Eggert |
|
Change zic.c to avoid creating symlinks to files that don't exist. |
|
|
Release 2002b - 2002-01-28 12:56:03 -0500 |
|
[These change notes are for Release 2002a, which was corrupted. |
2002b was a corrected version of 2002a.] |
|
changes by Paul Eggert |
|
Update the "leapseconds" file to note that there'll be no leap |
second at the end of June, 2002. |
|
Change "zic.c" to deal with a problem in handling the "Asia/Bishkek" zone. |
|
Change to "difftime.c" to avoid sizeof problems. |
|
|
Release 2001d - 2001-10-09 13:31:32 -0400 |
|
changes by Paul Eggert |
|
|
Release 2001c - 2001-06-05 13:59:55 -0400 |
|
changes by Paul Eggert and Andrew Brown |
|
|
Release 2001b - 2001-04-05 16:44:38 -0400 |
|
changes by Paul Eggert (modulo jnorgard's typo fix) |
|
tz-art.htm has been HTMLified. |
|
|
Release 2001a - 2001-03-13 12:57:44 -0500 |
|
changes by Paul Eggert |
|
An addition to the "leapseconds" file: comments with the text of the |
latest IERS leap second notice. |
|
Trailing white space has been removed from data file lines, and |
repeated spaces in "Rule Jordan" lines in the "asia" file have been |
converted to tabs. |
|
|
Release 2000h - 2000-12-14 15:33:38 -0500 |
|
changes by Paul Eggert |
|
one typo fix in the "art" file |
|
With providence, this is the last update of the millennium. |
|
|
Release 2000g - 2000-10-10 11:35:22 -0400 |
|
changes by Paul Eggert |
|
correction of John Mackin's name submitted by Robert Elz |
|
Garry Shandling's Daylight Saving Time joke (!?!) from the recent |
Emmy Awards broadcast. |
|
|
Release 2000f - 2000-08-10 09:31:58 -0400 |
|
changes by Paul Eggert |
|
Added information in "tz-art.htm" on a Seinfeld reference to DST. |
|
Error checking and messages in the "yearistype" script have been |
improved. |
|
|
Release 2000e - 2000-07-31 09:27:54 -0400 |
|
data changes by Paul Eggert |
|
a change to the default value of the defined constant HAVE_STRERROR |
|
the addition of a Dave Barry quote on DST to the tz-arts file |
|
|
Release 2000d - 2000-04-20 15:43:04 -0400 |
|
changes to the documentation and code of strftime for C99 conformance |
|
a bug fix for date.c |
|
These are based on (though modified from) changes by Paul Eggert. |
|
|
Release 2000c - 2000-03-04 10:31:43 -0500 |
|
changes by Paul Eggert |
|
|
Release 2000b - 2000-02-21 12:16:29 -0500 |
|
changes by Paul Eggert and Joseph Myers |
|
modest tweaks to the tz-art.htm and tz-link.htm files |
|
|
Release 2000a - 2000-01-18 09:21:26 -0500 |
|
changes by Paul Eggert |
|
The two hypertext documents have also been renamed. |
|
|
Release code1999i-data1999j - 1999-11-15 18:43:22 -0500 |
|
Paul Eggert's changes |
|
additions to the "zic" manual page and the "Arts.htm" file |
|
|
Release code1999h-data1999i - 1999-11-08 14:55:21 -0500 |
|
[not summarized] |
|
|
Release data1999h - 1999-10-07 03:50:29 -0400 |
|
changes by Paul Eggert to "europe" (most importantly, fixing |
Lithuania and Estonia) |
|
|
Release 1999g - 1999-09-28 11:06:18 -0400 |
|
data changes by Paul Eggert (most importantly, the change for |
Lebanon that buys correctness for this coming Sunday) |
|
The "code" file contains changes to "Makefile" and "checktab.awk" to |
allow better checking of time zone files before they are published. |
|
|
Release 1999f - 1999-09-23 09:48:14 -0400 |
|
changes by Arthur David Olson and Paul Eggert |
|
|
Release 1999e - 1999-08-17 15:20:54 -0400 |
|
changes circulated by Paul Eggert, although the change to handling |
of DST-specifying time zone names has been commented out for now |
(search for "XXX" in "localtime.c" for details). These files also |
do not make any changes to the start of DST in Brazil. |
|
In addition to Paul's changes, there are updates to "Arts.htm" and |
cleanups of URLs. |
|
|
Release 1999d - 1999-03-30 11:31:07 -0500 |
|
changes by Paul Eggert |
|
The Makefile's "make public" rule has also been changed to do a test |
compile of each individual time zone data file (which should help |
avoid problems such as the one we had with Nicosia). |
|
|
Release 1999c - 1999-03-25 09:47:47 -0500 |
|
changes by Paul Eggert, most importantly the change for Chile. |
|
|
Release 1999b - 1999-02-01 17:51:44 -0500 |
|
changes by Paul Eggert |
|
code changes (suggested by Mani Varadarajan, mani at be.com) for |
correct handling of symbolic links when building using a relative directory |
|
code changes to generate correct messages for failed links |
|
updates to the URLs in Arts.htm |
|
|
Release 1999a - 1999-01-19 16:20:29 -0500 |
|
error message internationalizations and corrections in zic.c and |
zdump.c (as suggested by Vladimir Michl, vladimir.michl at upol.cz, |
to whom thanks!) |
|
|
Release code1998h-data1998i - 1998-10-01 09:56:10 -0400 |
|
changes for Brazil, Chile, and Germany |
|
support for use of "24:00" in the input files for the time zone compiler |
|
|
Release code1998g-data1998h - 1998-09-24 10:50:28 -0400 |
|
changes by Paul Eggert |
|
correction to a define in the "private.h" file |
|
|
Release data1998g - 1998-08-11 03:28:35 -0000 |
[tzdata1998g.tar.gz is missing!] |
|
Lithuanian change provided by mgedmin at pub.osf.it |
|
Move creation of the GMT link with Etc/GMT to "etcetera" (from |
"backward") to ensure that the GMT file is created even where folks |
don't want the "backward" links (as suggested by Paul Eggert). |
|
|
Release data1998f - 1998-07-20 13:50:00 -0000 |
[tzdata1998f.tar.gz is missing!] |
|
Update the "leapseconds" file to include the newly-announced |
insertion at the end of 1998. |
|
|
Release code1998f - 1998-06-01 10:18:31 -0400 |
|
addition to localtime.c by Guy Harris |
|
|
Release 1998e - 1998-05-28 09:56:26 -0400 |
|
The Makefile is changed to produce zoneinfo-posix rather than |
zoneinfo/posix, and to produce zoneinfo-leaps rather than |
zoneinfo/right. |
|
data changes by Paul Eggert |
|
changes from Guy Harris to provide asctime_r and ctime_r |
|
A usno1998 file (substantially identical to usno1997) has been added. |
|
|
Release 1998d - 1998-05-14 11:58:34 -0400 |
|
changes to comments (in particular, elimination of references to CIA maps). |
"Arts.htm", "WWW.htm", "asia", and "australasia" are the only places |
where changes occur. |
|
|
Release 1998c - 1998-02-28 12:32:26 -0500 |
|
changes by Paul Eggert (save the "French correction," on which I'll |
wait for the dust to settle) |
|
symlink changes |
|
changes and additions to Arts.htm |
|
|
Release 1998b - 1998-01-17 14:31:51 -0500 |
|
URL cleanups and additions |
|
|
Release 1998a - 1998-01-13 12:37:35 -0500 |
|
changes by Paul Eggert |
|
|
Release code1997i-data1997k - 1997-12-29 09:53:41 -0500 |
|
changes by Paul Eggert, with minor modifications from Arthur David |
Olson to make the files more browser friendly |
|
|
Release code1997h-data1997j - 1997-12-18 17:47:35 -0500 |
|
minor changes to put "TZif" at the start of each time zone information file |
|
a rule has also been added to the Makefile so you can |
make zones |
to just recompile the zone information files (rather than doing a |
full "make install" with its other effects). |
|
|
Release data1997i - 1997-10-07 08:45:38 -0400 |
|
changes to Africa by Paul Eggert |
|
|
Release code1997g-data1997h - 1997-09-04 16:56:54 -0400 |
|
corrections for Uruguay (and other locations) |
|
Arthur David Olson's simple-minded fix allowing mktime to both |
correctly handle leap seconds and correctly handle tm_sec values |
upon which arithmetic has been performed. |
|
|
Release code1997f-data1997g - 1997-07-19 13:15:02 -0400 |
|
Paul Eggert's updates |
|
a small change to a function prototype; |
|
"Music" has been renamed "Arts.htm", HTMLified, and augmented to |
include information on Around the World in Eighty Days. |
|
|
Release code1997e-data1997f - 1997-05-03 18:52:34 -0400 |
|
fixes to zic's error handling |
|
changes inspired by the item circulated on Slovenia |
|
The description of Web resources has been HTMLified for browsing |
convenience. |
|
A new piece of tz-related music has been added to the "Music" file. |
|
|
Release code1997d-data1997e - 1997-03-29 12:48:52 -0500 |
|
Paul Eggert's latest suggestions |
|
|
Release code1997c-data1997d - 1997-03-07 20:37:54 -0500 |
|
changes to "zic.c" to correct performance of the "-s" option |
|
a new file "usno1997" |
|
|
Release data1997c - 1997-03-04 09:58:18 -0500 |
|
changes in Israel |
|
|
Release 1997b - 1997-02-27 18:34:19 -0500 |
|
The data file incorporates the 1997 leap second. |
|
The code file incorporates Arthur David Olson's take on the |
zic/multiprocessor/directory-creation situation. |
|
|
Release 1997a - 1997-01-21 09:11:10 -0500 |
|
Paul Eggert's Antarctica (and other changes) |
|
Arthur David Olson finessed the "getopt" issue by checking against |
both -1 and EOF (regardless of POSIX, SunOS 4.1.1's manual says -1 |
is returned while SunOS 5.5's manual says EOF is returned). |
|
|
Release code1996o-data1996n - 1996-12-27 21:42:05 -0500 |
|
Paul Eggert's latest changes |
|
|
Release code1996n - 1996-12-16 09:42:02 -0500 |
|
link snapping fix from Bruce Evans (via Garrett Wollman) |
|
|
Release data1996m - 1996-11-24 02:37:34 -0000 |
[tzdata1996m.tar.gz is missing!] |
|
Paul Eggert's batch of changes |
|
|
Release code1996m-data1996l - 1996-11-05 14:00:12 -0500 |
|
No functional changes here; the files have simply been changed to |
make more use of ISO style dates in comments. The names of the above |
files now include the year in full. |
|
|
Release code96l - 1996-09-08 17:12:20 -0400 |
|
tzcode96k was missing a couple of pieces. |
|
|
Release 96k - 1996-09-08 16:06:22 -0400 |
|
the latest round of changes from Paul Eggert |
|
the recent Year 2000 material |
|
|
Release code96j - 1996-07-30 13:18:53 -0400 |
|
Set sp->typecnt as suggested by Timothy Patrick Murphy. |
|
|
Release code96i - 1996-07-27 20:11:35 -0400 |
|
Paul's suggested patch for strftime %V week numbers |
|
|
Release data96i - 1996-07-01 18:13:04 -0400 |
|
"northamerica" and "europe" changes by Paul Eggert |
|
|
Release code96h - 1996-06-05 08:02:21 -0400 |
|
fix for handling transitions specified in Universal Time |
|
Some "public domain" notices have also been added. |
|
|
Release code96g - 1996-05-16 14:00:26 -0400 |
|
fix for the simultaneous-DST-and-zone-change challenge |
|
|
Release data96h - 1996-05-09 17:40:51 -0400 |
|
changes by Paul Eggert |
|
|
Release code96f-data96g - 1996-05-03 03:09:59 -0000 |
[tzcode96f.tar.gz + tzdata96g.tar.gz are both missing!] |
|
The changes get us some of the way to fixing the problems noted in Paul |
Eggert's letter yesterday (in addition to a few others). The approach |
has been to make zic a bit smarter about figuring out what time zone |
abbreviations apply just after the time specified in the "UNTIL" part |
of a zone line. Putting the smarts in zic means avoiding having |
transition times show up in both "Zone" lines and "Rule" lines, which |
in turn avoids multiple transition time entries in time zone files. |
(This also makes the zic input files such as "europe" a bit shorter and |
should ease maintenance.) |
|
|
Release data96f - 1996-04-19 19:20:03 -0000 |
[tzdata96f.tar.gz is missing!] |
|
The only changes are to the "northamerica" file; the time zone |
abbreviation for Denver is corrected to MST (and MDT), and the |
comments for Mexico have been updated. |
|
|
Release data96e - 1996-03-19 17:37:26 -0500 |
|
Proposals by Paul Eggert, in particular the Portugal change that |
comes into play at the end of this month. |
|
|
Release data96d - 1996-03-18 20:49:39 -0500 |
|
[not summarized] |
|
|
Release code96e - 1996-02-29 15:43:27 -0000 |
[tzcode96e.tar.gz is missing!] |
|
internationalization changes and the fix to the documentation for strftime |
|
|
Release code96d-data96c - 1996-02-12 11:05:27 -0500 |
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The "code" file simply updates Bob Kridle's electronic address. |
|
The "data" file updates rules for Mexico. |
|
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Release data96b - 1996-01-27 15:44:42 -0500 |
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Kiribati change |
|
|
Release code96c - 1996-01-16 16:58:15 -0500 |
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leap-year streamlining and binary-search changes |
|
fix to newctime.3 |
|
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Release code96b - 1996-01-10 20:42:39 -0500 |
|
fixes and enhancements from Paul Eggert, including code that |
emulates the behavior of recent versions of the SunOS "date" |
command. |
|
|
Release 96a - 1996-01-06 09:08:24 -0500 |
|
Israel updates |
|
fixes to strftime.c for correct ISO 8601 week number generation, |
plus support for two new formats ('G' and 'g') to give ISO 8601 year |
numbers (which are not necessarily the same as calendar year numbers) |
|
|
Release code95i-data95m - 1995-12-21 12:46:47 -0500 |
|
The latest revisions from Paul Eggert are included, the usno1995 |
file has been updated, and a new file ("WWW") covering useful URLs |
has been added. |
|
|
Release code95h-data95l - 1995-12-19 18:10:12 -0500 |
|
A simplification of a macro definition, a change to data for Sudan, |
and (for last minute shoppers) notes in the "Music" file on the CD |
"Old Man Time". |
|
|
Release code95g-data95k - 1995-10-30 10:32:47 -0500 |
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(slightly reformatted) 8-bit-clean proposed patch |
|
minor patch: US/Eastern -> America/New_York |
|
snapshot of the USNO's latest data ("usno1995") |
|
some other minor cleanups |
|
|
Release code95f-data95j - 1995-10-28 21:01:34 -0000 |
[tzcode95f.tar.gz + tzdata95j.tar.gz are both missing!] |
|
European cleanups |
|
support for 64-bit time_t's |
|
optimization in localtime.c |
|
|
Release code95e - 1995-10-13 13:23:57 -0400 |
|
the mktime change to scan from future to past when trying to find time zone |
offsets |
|
|
Release data95i - 1995-09-26 10:43:26 -0400 |
|
For Canada/Central, guess that the Sun customer's "one week too |
early" was just a approximation, and the true error is one month |
too early. This is consistent with the rest of Canada. |
|
|
Release data95h - 1995-09-21 11:26:48 -0400 |
|
latest changes from Paul Eggert |
|
|
Release code95d - 1995-09-14 11:14:45 -0400 |
|
the addition of a "Music" file, which documents four recorded |
versions of the tune "Save That Time". |
|
|
Release data95g - 1995-09-01 17:21:36 -0400 |
|
"yearistype" correction |
|
|
Release data95f - 1995-08-28 20:46:56 -0400 |
|
Paul Eggert's change to the australasia file |
|
|
Release data95e - 1995-07-08 18:02:34 -0400 |
|
The only change is a leap second at the end of this year. |
Thanks to Bradley White for forwarding news on the leap second. |
|
|
Release data95d - 1995-07-03 13:26:22 -0400 |
|
Paul Eggert's changes |
|
|
Release data95c - 1995-07-02 19:19:28 -0400 |
|
changes to "asia", "backward", "europe", and "southamerica" |
(read: northamericacentrics need not apply) |
|
|
Release code95c - 1995-03-13 14:00:46 -0500 |
|
one-line fix for sign extension problems in detzcode |
|
|
Release 95b - 1995-03-04 11:22:38 -0500 |
|
Minor changes in both: |
|
The "code" file contains a workaround for the lack of "unistd.h" in |
Microsoft C++ version 7. |
|
The "data" file contains a fixed "Link" for America/Shiprock. |
|
|
Release 94h - 1994-12-10 12:51:14 -0500 |
|
The files: |
|
* incorporate the changes to "zdump" and "date" to make changes to |
the "TZ" environment variable permanent; |
|
* incorporate the table changes by Paul Eggert; |
|
* include (and document) support for universal time specifications in |
data files - but do not (yet) include use of this feature in the |
data files. |
|
Think of this as "TZ Classic" - the software has been set up not to break if |
universal time shows up in its input, and data entries have been |
left as is so as not to break existing implementations. |
|
|
Release data94f - 1994-08-20 12:56:09 -0400 |
|
(with thanks!) the latest data updates from Paul Eggert |
|
|
Release data94e - 1994-06-04 13:13:53 -0400 |
|
[not summarized] |
|
|
Release code94g - 1994-05-05 12:14:07 -0400 |
|
fix missing "optind.c" and a reference to it in the Makefile |
|
|
Release code94f - 1994-05-05 13:00:33 -0000 |
[tzcode94f.tar.gz is missing!] |
|
changes to avoid overflow in difftime, as well as changes to cope |
with the 52/53 challenge in strftime |
|
|
Release code94e - 1994-03-30 23:32:59 -0500 |
|
change for the benefit of PCTS |
|
|
Release 94d - 1994-02-24 15:42:25 -0500 |
|
Avoid clashes with POSIX semantics for zones such as GMT+4. |
|
Some other very minor housekeeping is also present. |
|
|
Release code94c - 1994-02-10 08:52:40 -0500 |
|
Fix bug where mkdirs was broken unless you compile with |
-fwritable-strings (which is generally losing to do). |
|
|
Release 94b - 1994-02-07 10:04:33 -0500 |
|
work by Paul Eggert who notes: |
|
I found another book of time zone histories by E W Whitman; it's not |
as extensive as Shanks but has a few goodies of its own. I used it |
to update the tables. I also fixed some more as a result of |
correspondence with Adam David and Peter Ilieve, and move some stray |
links from 'europe' to 'backward'. I corrected some scanning errors |
in usno1989. |
|
As far as the code goes, I fixed zic to allow years in the range |
INT_MIN to INT_MAX; this fixed a few boundary conditions around 1900. |
And I cleaned up the zic documentation a little bit. |
|
|
Release data94a - 1994-02-03 08:58:54 -0500 |
|
It simply incorporates the recently announced leap second into the |
"leapseconds" file. |
|
|
Release 93g - 1993-11-22 17:28:27 -0500 |
|
Paul Eggert has provided a good deal of historic information (based |
on Shanks), and there are some code changes to deal with the buglets |
that crawled out in dealing with the new information. |
|
|
Release 93f - 1993-10-15 12:27:46 -0400 |
|
Paul Eggert's changes |
|
|
Release 93e - 1993-09-05 21:21:44 -0400 |
|
This has updated data for Israel, England, and Kwajalein. There's |
also an update to "zdump" to cope with Kwajalein's 24-hour jump. |
Thanks to Paul Eggert and Peter Ilieve for the changes. |
|
|
Release 93d - 1993-06-17 23:34:17 -0400 |
|
new fix and new data on Israel |
|
|
Release 93c - 1993-06-06 19:31:55 -0400 |
|
[not summarized] |
|
|
Release 93b - 1993-02-02 14:53:58 -0500 |
|
updated "leapseconds" file |
|
|
Release 93 - 1993-01-08 07:01:06 -0500 |
|
At kre's suggestion, the package has been split in two - a code piece |
(which also includes documentation) that's only of use to folks who |
want to recompile things and a data piece useful to anyone who can |
run "zic". |
|
The new version has a few changes to the data files, a few |
portability changes, and an off-by-one fix (with thanks to |
Tom Karzes at deshaw.com for providing a description and a |
solution). |
|
|
Release 92c - 1992-11-21 17:35:36 -0000 |
[tz92c.tar.Z is missing!] |
|
The fallout from the latest round of DST transitions. |
|
There are changes for Portugal, Saskatchewan, and "Pacific-New"; |
there's also a change to "zic.c" that makes it portable to more systems. |
|
|
Release 92 - 1992-04-25 18:17:03 -0000 |
[tz92.tar.Z is missing!] |
|
By popular demand (well, at any rate, following a request by kre at munnari) |
|
|
The 1989 update of the time zone package featured: |
|
* POSIXization (including interpretation of POSIX-style TZ environment |
variables, provided by Guy Harris), |
* ANSIfication (including versions of "mktime" and "difftime"), |
* SVIDulation (an "altzone" variable) |
* MACHination (the "gtime" function) |
* corrections to some time zone data (including corrections to the rules |
for Great Britain and New Zealand) |
* reference data from the United States Naval Observatory for folks who |
want to do additional time zones |
* and the 1989 data for Saudi Arabia. |
|
(Since this code will be treated as "part of the implementation" in some |
places and as "part of the application" in others, there's no good way to |
name functions, such as timegm, that are not part of the proposed ANSI C |
standard; such functions have kept their old, underscore-free names in this |
update.) |
|
And the "dysize" function has disappeared; it was present to allow |
compilation of the "date" command on old BSD systems, and a version of "date" |
is now provided in the package. The "date" command is not created when you |
"make all" since it may lack options provided by the version distributed with |
your operating system, or may not interact with the system in the same way |
the native version does. |
|
Since POSIX frowns on correct leap second handling, the default behavior of |
the "zic" command (in the absence of a "-L" option) has been changed to omit |
leap second information from its output files. |
|
|
----- |
Notes |
|
This file contains copies of the part of each release announcement |
that talks about the changes in that release. The text has been |
adapted and reformatted for the purposes of this file. |
|
Typically a release R consists of a pair of tarball files, |
tzcodeR.tar.gz and tzdataR.tar.gz. However, some releases (e.g., |
code2010a, data2012c) consist of just one or the other tarball, and a |
few (e.g., code2012c-data2012d) have tarballs with mixed version |
numbers. |
|
Release time stamps are taken from the release's commit (for newer, |
git releases), from the newest file in the tarball (for older |
releases, where this info is available) or from the email announcing |
the release (if all else fails; these are marked with a time zone of |
-0000 and an "is missing!" comment). |
|
Earlier versions of the code and data were not announced on the tz |
list and are not summarized here. |
|
This file is in the public domain. |
|
Local Variables: |
coding: utf-8 |
End: |
|